| {"messages": [{"role": "user", "content": "把'河'翻译成英文"}, {"role": "assistant", "content": "河 的英文是 river。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "早上好"}, {"role": "assistant", "content": "早上好！祝你今天心情愉快。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你吃饭了吗"}, {"role": "assistant", "content": "我是 AI 不用吃饭，不过谢谢你关心！"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "新年快乐"}, {"role": "assistant", "content": "新年快乐！祝万事如意。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "一年有几个月"}, {"role": "assistant", "content": "一年有 12 个月。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "在吗"}, {"role": "assistant", "content": "在的，请说。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 2 等于几？"}, {"role": "assistant", "content": "4 + 2 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 4 等于几？"}, {"role": "assistant", "content": "2 + 4 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "周末愉快"}, {"role": "assistant", "content": "周末愉快！好好放松一下吧。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 1 等于几？"}, {"role": "assistant", "content": "4 + 1 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "水在多少度沸腾"}, {"role": "assistant", "content": "标准大气压下，水在 100 摄氏度沸腾。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 2 等于几？"}, {"role": "assistant", "content": "9 + 2 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'milk'翻译成中文"}, {"role": "assistant", "content": "milk 的中文是 牛奶。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "冰遇到热会怎么样"}, {"role": "assistant", "content": "冰遇到热会融化成水。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "熊猫最爱吃什么"}, {"role": "assistant", "content": "熊猫最爱吃竹子。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "生日快乐"}, {"role": "assistant", "content": "谢谢！也祝你天天开心。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "下午好"}, {"role": "assistant", "content": "下午好！喝杯茶休息一下吧。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "中国最长的河流是哪条"}, {"role": "assistant", "content": "中国最长的河流是长江。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 8 等于几？"}, {"role": "assistant", "content": "8 - 8 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'汽车'翻译成英文"}, {"role": "assistant", "content": "汽车 的英文是 car。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "彩虹有几种颜色"}, {"role": "assistant", "content": "彩虹有红橙黄绿蓝靛紫 7 种颜色。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'面包'翻译成英文"}, {"role": "assistant", "content": "面包 的英文是 bread。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'星期一'翻译成英文"}, {"role": "assistant", "content": "星期一 的英文是 Monday。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "晚安"}, {"role": "assistant", "content": "晚安，祝你做个好梦。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 3 等于几？"}, {"role": "assistant", "content": "6 + 3 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 - 1 等于几？"}, {"role": "assistant", "content": "2 - 1 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'airplane'翻译成中文"}, {"role": "assistant", "content": "airplane 的中文是 飞机。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 - 2 等于几？"}, {"role": "assistant", "content": "2 - 2 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'morning'翻译成中文"}, {"role": "assistant", "content": "morning 的中文是 早上。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你好呀"}, {"role": "assistant", "content": "你好呀！今天过得怎么样？"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'tea'翻译成中文"}, {"role": "assistant", "content": "tea 的中文是 茶。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 6 等于几？"}, {"role": "assistant", "content": "7 - 6 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "谢谢你"}, {"role": "assistant", "content": "不用谢，这是我应该做的。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'tree'翻译成中文"}, {"role": "assistant", "content": "tree 的中文是 树。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 5 等于几？"}, {"role": "assistant", "content": "4 + 5 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 2 等于几？"}, {"role": "assistant", "content": "8 - 2 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "十二生肖排第一的是什么"}, {"role": "assistant", "content": "十二生肖排第一的是鼠。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 3 等于几？"}, {"role": "assistant", "content": "7 - 3 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'green'翻译成中文"}, {"role": "assistant", "content": "green 的中文是 绿色。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 2 等于几？"}, {"role": "assistant", "content": "3 + 2 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "太阳从哪边升起"}, {"role": "assistant", "content": "太阳从东边升起，西边落下。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你会说英文吗"}, {"role": "assistant", "content": "会的，你可以用英文和我聊天。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "水在多少度结冰"}, {"role": "assistant", "content": "标准大气压下，水在 0 摄氏度结冰。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'苹果'翻译成英文"}, {"role": "assistant", "content": "苹果 的英文是 apple。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'family'翻译成中文"}, {"role": "assistant", "content": "family 的中文是 家庭。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "世界上最高的山峰是哪座"}, {"role": "assistant", "content": "世界上最高的山峰是珠穆朗玛峰。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 7 等于几？"}, {"role": "assistant", "content": "7 - 7 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'朋友'翻译成英文"}, {"role": "assistant", "content": "朋友 的英文是 friend。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "人的正常体温大约是多少"}, {"role": "assistant", "content": "人的正常体温大约是 37 摄氏度。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "一公里等于多少米"}, {"role": "assistant", "content": "一公里等于 1000 米。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 6 等于几？"}, {"role": "assistant", "content": "5 + 6 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'早上'翻译成英文"}, {"role": "assistant", "content": "早上 的英文是 morning。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'月亮'翻译成英文"}, {"role": "assistant", "content": "月亮 的英文是 moon。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'学生'翻译成英文"}, {"role": "assistant", "content": "学生 的英文是 student。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你会什么"}, {"role": "assistant", "content": "我可以聊天、答题、算数，也可以帮你翻译。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'river'翻译成中文"}, {"role": "assistant", "content": "river 的中文是 河。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'moon'翻译成中文"}, {"role": "assistant", "content": "moon 的中文是 月亮。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'school'翻译成中文"}, {"role": "assistant", "content": "school 的中文是 学校。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 9 等于几？"}, {"role": "assistant", "content": "4 + 9 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 - 1 等于几？"}, {"role": "assistant", "content": "1 - 1 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'Monday'翻译成中文"}, {"role": "assistant", "content": "Monday 的中文是 星期一。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'电脑'翻译成英文"}, {"role": "assistant", "content": "电脑 的英文是 computer。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "再见"}, {"role": "assistant", "content": "再见！欢迎随时来找我聊天。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 4 等于几？"}, {"role": "assistant", "content": "6 + 4 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 6 等于几？"}, {"role": "assistant", "content": "8 + 6 = 14。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 3 等于几？"}, {"role": "assistant", "content": "8 + 3 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 2 等于几？"}, {"role": "assistant", "content": "7 - 2 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 - 2 等于几？"}, {"role": "assistant", "content": "3 - 2 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "谢谢"}, {"role": "assistant", "content": "不客气，能帮到你我很开心。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "天空是什么颜色"}, {"role": "assistant", "content": "晴天时天空通常是蓝色的。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "植物生长需要什么"}, {"role": "assistant", "content": "植物生长一般需要阳光、水分和空气。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "一年有哪四个季节"}, {"role": "assistant", "content": "一年有春、夏、秋、冬四个季节。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你叫什么名字"}, {"role": "assistant", "content": "你可以叫我小助手，很高兴认识你。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "一天有多少个小时"}, {"role": "assistant", "content": "一天有 24 个小时。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'student'翻译成中文"}, {"role": "assistant", "content": "student 的中文是 学生。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'Sunday'翻译成中文"}, {"role": "assistant", "content": "Sunday 的中文是 星期天。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 3 等于几？"}, {"role": "assistant", "content": "9 + 3 = 12。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 1 等于几？"}, {"role": "assistant", "content": "9 + 1 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'bread'翻译成中文"}, {"role": "assistant", "content": "bread 的中文是 面包。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'cat'翻译成中文"}, {"role": "assistant", "content": "cat 的中文是 猫。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 8 等于几？"}, {"role": "assistant", "content": "2 + 8 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 4 等于几？"}, {"role": "assistant", "content": "9 - 4 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "中午好"}, {"role": "assistant", "content": "中午好！记得吃午饭休息一下哦。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 - 2 等于几？"}, {"role": "assistant", "content": "4 - 2 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 - 3 等于几？"}, {"role": "assistant", "content": "4 - 3 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 4 等于几？"}, {"role": "assistant", "content": "7 - 4 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'火车'翻译成英文"}, {"role": "assistant", "content": "火车 的英文是 train。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'书'翻译成英文"}, {"role": "assistant", "content": "书 的英文是 book。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 1 等于几？"}, {"role": "assistant", "content": "7 - 1 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'红色'翻译成英文"}, {"role": "assistant", "content": "红色 的英文是 red。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 - 2 等于几？"}, {"role": "assistant", "content": "5 - 2 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你是谁"}, {"role": "assistant", "content": "我是一个 AI 助手，可以回答问题、陪你聊天。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 1 等于几？"}, {"role": "assistant", "content": "5 + 1 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "一个星期有几天"}, {"role": "assistant", "content": "一个星期有 7 天。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'火'翻译成英文"}, {"role": "assistant", "content": "火 的英文是 fire。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'牛奶'翻译成英文"}, {"role": "assistant", "content": "牛奶 的英文是 milk。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'家庭'翻译成英文"}, {"role": "assistant", "content": "家庭 的英文是 family。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'book'翻译成中文"}, {"role": "assistant", "content": "book 的中文是 书。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "你好"}, {"role": "assistant", "content": "你好！很高兴见到你，有什么可以帮你的吗？"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 2 等于几？"}, {"role": "assistant", "content": "8 + 2 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 7 等于几？"}, {"role": "assistant", "content": "9 - 7 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'fish'翻译成中文"}, {"role": "assistant", "content": "fish 的中文是 鱼。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'bird'翻译成中文"}, {"role": "assistant", "content": "bird 的中文是 鸟。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "蜜蜂酿什么"}, {"role": "assistant", "content": "蜜蜂采花蜜酿成蜂蜜。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'dog'翻译成中文"}, {"role": "assistant", "content": "dog 的中文是 狗。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'白色'翻译成英文"}, {"role": "assistant", "content": "白色 的英文是 white。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'猫'翻译成英文"}, {"role": "assistant", "content": "猫 的英文是 cat。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "今天天气不错"}, {"role": "assistant", "content": "是啊，这样的天气很适合出门走走。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'蓝色'翻译成英文"}, {"role": "assistant", "content": "蓝色 的英文是 blue。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'rice'翻译成中文"}, {"role": "assistant", "content": "rice 的中文是 米饭。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'学校'翻译成英文"}, {"role": "assistant", "content": "学校 的英文是 school。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 3 等于几？"}, {"role": "assistant", "content": "8 - 3 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 9 等于几？"}, {"role": "assistant", "content": "9 + 9 = 18。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 9 等于几？"}, {"role": "assistant", "content": "1 + 9 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'sun'翻译成中文"}, {"role": "assistant", "content": "sun 的中文是 太阳。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "世界上最大的海洋是哪个"}, {"role": "assistant", "content": "世界上最大的海洋是太平洋。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'car'翻译成中文"}, {"role": "assistant", "content": "car 的中文是 汽车。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 5 等于几？"}, {"role": "assistant", "content": "8 + 5 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 5 等于几？"}, {"role": "assistant", "content": "9 - 5 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 8 等于几？"}, {"role": "assistant", "content": "9 + 8 = 17。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'fire'翻译成中文"}, {"role": "assistant", "content": "fire 的中文是 火。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 - 1 等于几？"}, {"role": "assistant", "content": "3 - 1 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 - 3 等于几？"}, {"role": "assistant", "content": "5 - 3 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "讲个笑话"}, {"role": "assistant", "content": "程序员最讨厌两件事：别人不写注释，和让自己写注释。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 - 2 等于几？"}, {"role": "assistant", "content": "6 - 2 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 - 1 等于几？"}, {"role": "assistant", "content": "5 - 1 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'white'翻译成中文"}, {"role": "assistant", "content": "white 的中文是 白色。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 9 等于几？"}, {"role": "assistant", "content": "7 + 9 = 16。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 8 等于几？"}, {"role": "assistant", "content": "5 + 8 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "中国的首都是哪里"}, {"role": "assistant", "content": "中国的首都是北京。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 - 5 等于几？"}, {"role": "assistant", "content": "6 - 5 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'red'翻译成中文"}, {"role": "assistant", "content": "red 的中文是 红色。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 3 等于几？"}, {"role": "assistant", "content": "3 + 3 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 3 等于几？"}, {"role": "assistant", "content": "9 - 3 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'茶'翻译成英文"}, {"role": "assistant", "content": "茶 的英文是 tea。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 - 1 等于几？"}, {"role": "assistant", "content": "6 - 1 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 - 3 等于几？"}, {"role": "assistant", "content": "6 - 3 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'老师'翻译成英文"}, {"role": "assistant", "content": "老师 的英文是 teacher。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 1 等于几？"}, {"role": "assistant", "content": "8 - 1 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 2 等于几？"}, {"role": "assistant", "content": "2 + 2 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'星期天'翻译成英文"}, {"role": "assistant", "content": "星期天 的英文是 Sunday。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 4 等于几？"}, {"role": "assistant", "content": "5 + 4 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 4 等于几？"}, {"role": "assistant", "content": "8 - 4 = 4。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'water'翻译成中文"}, {"role": "assistant", "content": "water 的中文是 水。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 8 等于几？"}, {"role": "assistant", "content": "4 + 8 = 12。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 7 等于几？"}, {"role": "assistant", "content": "3 + 7 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 7 等于几？"}, {"role": "assistant", "content": "5 + 7 = 12。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'飞机'翻译成英文"}, {"role": "assistant", "content": "飞机 的英文是 airplane。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 4 等于几？"}, {"role": "assistant", "content": "9 + 4 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 - 5 等于几？"}, {"role": "assistant", "content": "7 - 5 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 9 等于几？"}, {"role": "assistant", "content": "6 + 9 = 15。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 6 等于几？"}, {"role": "assistant", "content": "6 + 6 = 12。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 4 等于几？"}, {"role": "assistant", "content": "7 + 4 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 1 等于几？"}, {"role": "assistant", "content": "7 + 1 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 5 等于几？"}, {"role": "assistant", "content": "1 + 5 = 6。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'医生'翻译成英文"}, {"role": "assistant", "content": "医生 的英文是 doctor。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 8 等于几？"}, {"role": "assistant", "content": "1 + 8 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'医院'翻译成英文"}, {"role": "assistant", "content": "医院 的英文是 hospital。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'鸟'翻译成英文"}, {"role": "assistant", "content": "鸟 的英文是 bird。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'咖啡'翻译成英文"}, {"role": "assistant", "content": "咖啡 的英文是 coffee。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'teacher'翻译成中文"}, {"role": "assistant", "content": "teacher 的中文是 老师。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 1 等于几？"}, {"role": "assistant", "content": "2 + 1 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'鱼'翻译成英文"}, {"role": "assistant", "content": "鱼 的英文是 fish。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'太阳'翻译成英文"}, {"role": "assistant", "content": "太阳 的英文是 sun。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 7 等于几？"}, {"role": "assistant", "content": "1 + 7 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'米饭'翻译成英文"}, {"role": "assistant", "content": "米饭 的英文是 rice。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 3 等于几？"}, {"role": "assistant", "content": "5 + 3 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 4 等于几？"}, {"role": "assistant", "content": "3 + 4 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 6 等于几？"}, {"role": "assistant", "content": "7 + 6 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 8 等于几？"}, {"role": "assistant", "content": "9 - 8 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 1 等于几？"}, {"role": "assistant", "content": "1 + 1 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 7 等于几？"}, {"role": "assistant", "content": "8 + 7 = 15。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 2 等于几？"}, {"role": "assistant", "content": "1 + 2 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 9 等于几？"}, {"role": "assistant", "content": "5 + 9 = 14。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 2 等于几？"}, {"role": "assistant", "content": "5 + 2 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'apple'翻译成中文"}, {"role": "assistant", "content": "apple 的中文是 苹果。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'鸡蛋'翻译成英文"}, {"role": "assistant", "content": "鸡蛋 的英文是 egg。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'friend'翻译成中文"}, {"role": "assistant", "content": "friend 的中文是 朋友。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 5 等于几？"}, {"role": "assistant", "content": "9 + 5 = 14。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'狗'翻译成英文"}, {"role": "assistant", "content": "狗 的英文是 dog。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 - 4 等于几？"}, {"role": "assistant", "content": "5 - 4 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 1 等于几？"}, {"role": "assistant", "content": "9 - 1 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'train'翻译成中文"}, {"role": "assistant", "content": "train 的中文是 火车。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'树'翻译成英文"}, {"role": "assistant", "content": "树 的英文是 tree。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'晚上'翻译成英文"}, {"role": "assistant", "content": "晚上 的英文是 evening。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 5 等于几？"}, {"role": "assistant", "content": "3 + 5 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 7 等于几？"}, {"role": "assistant", "content": "4 + 7 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 3 等于几？"}, {"role": "assistant", "content": "4 + 3 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 3 等于几？"}, {"role": "assistant", "content": "7 + 3 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 1 等于几？"}, {"role": "assistant", "content": "6 + 1 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 9 等于几？"}, {"role": "assistant", "content": "8 + 9 = 17。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "7 + 8 等于几？"}, {"role": "assistant", "content": "7 + 8 = 15。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'绿色'翻译成英文"}, {"role": "assistant", "content": "绿色 的英文是 green。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 6 等于几？"}, {"role": "assistant", "content": "2 + 6 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 9 等于几？"}, {"role": "assistant", "content": "2 + 9 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 8 等于几？"}, {"role": "assistant", "content": "3 + 8 = 11。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 8 等于几？"}, {"role": "assistant", "content": "8 + 8 = 16。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 6 等于几？"}, {"role": "assistant", "content": "8 - 6 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'phone'翻译成中文"}, {"role": "assistant", "content": "phone 的中文是 手机。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'mountain'翻译成中文"}, {"role": "assistant", "content": "mountain 的中文是 山。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 6 等于几？"}, {"role": "assistant", "content": "1 + 6 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 7 等于几？"}, {"role": "assistant", "content": "8 - 7 = 1。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 2 等于几？"}, {"role": "assistant", "content": "9 - 2 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 - 4 等于几？"}, {"role": "assistant", "content": "4 - 4 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 + 6 等于几？"}, {"role": "assistant", "content": "9 + 6 = 15。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 6 等于几？"}, {"role": "assistant", "content": "9 - 6 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "4 + 4 等于几？"}, {"role": "assistant", "content": "4 + 4 = 8。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "3 + 6 等于几？"}, {"role": "assistant", "content": "3 + 6 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "5 + 5 等于几？"}, {"role": "assistant", "content": "5 + 5 = 10。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 5 等于几？"}, {"role": "assistant", "content": "2 + 5 = 7。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "2 + 3 等于几？"}, {"role": "assistant", "content": "2 + 3 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'coffee'翻译成中文"}, {"role": "assistant", "content": "coffee 的中文是 咖啡。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 - 4 等于几？"}, {"role": "assistant", "content": "6 - 4 = 2。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'hospital'翻译成中文"}, {"role": "assistant", "content": "hospital 的中文是 医院。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "6 + 7 等于几？"}, {"role": "assistant", "content": "6 + 7 = 13。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 - 5 等于几？"}, {"role": "assistant", "content": "8 - 5 = 3。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "9 - 9 等于几？"}, {"role": "assistant", "content": "9 - 9 = 0。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "1 + 4 等于几？"}, {"role": "assistant", "content": "1 + 4 = 5。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "8 + 1 等于几？"}, {"role": "assistant", "content": "8 + 1 = 9。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "把'手机'翻译成英文"}, {"role": "assistant", "content": "手机 的英文是 phone。"}], "difficulty": "easy"} |
| {"messages": [{"role": "user", "content": "50 千克 等于多少 克？"}, {"role": "assistant", "content": "50 千克 = 50000 克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "41 乘 5 等于多少？"}, {"role": "assistant", "content": "41 × 5 = 205。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 2 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 2 小时 = 140 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 9 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 9 小时 = 450 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 5 小时 = 250 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 20 千米，行驶 9 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 20 千米/小时 × 时间 9 小时 = 180 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "91 米 等于多少 厘米？"}, {"role": "assistant", "content": "91 米 = 9100 厘米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 8 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 8 小时 = 400 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "199 加 933 等于多少？"}, {"role": "assistant", "content": "199 + 933 = 1132。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'勇敢'的反义词是什么？"}, {"role": "assistant", "content": "'勇敢'的反义词是'胆怯'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 20 千米，行驶 2 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 20 千米/小时 × 时间 2 小时 = 40 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 9 元，买 3 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 9 元，数量 3 支，一共 9 × 3 = 27 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 5 小时 = 350 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'成功'的反义词是什么？"}, {"role": "assistant", "content": "'成功'的反义词是'失败'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "600 分钟 等于多少 小时？"}, {"role": "assistant", "content": "600 分钟 = 10 小时。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "34 乘 4 等于多少？"}, {"role": "assistant", "content": "34 × 4 = 136。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'来'的反义词是什么？"}, {"role": "assistant", "content": "'来'的反义词是'去'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'干净'的反义词是什么？"}, {"role": "assistant", "content": "'干净'的反义词是'肮脏'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 40 千米，行驶 7 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 40 千米/小时 × 时间 7 小时 = 280 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 4 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 4 小时 = 120 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'长'的反义词是什么？"}, {"role": "assistant", "content": "'长'的反义词是'短'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'甜'的反义词是什么？"}, {"role": "assistant", "content": "'甜'的反义词是'苦'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 13 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 13 元，数量 12 支，一共 13 × 12 = 156 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 5 小时 = 300 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 6 元，买 7 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 6 元，数量 7 支，一共 6 × 7 = 42 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'好'的反义词是什么？"}, {"role": "assistant", "content": "'好'的反义词是'坏'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'强'的反义词是什么？"}, {"role": "assistant", "content": "'强'的反义词是'弱'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "977 减 619 等于多少？"}, {"role": "assistant", "content": "977 - 619 = 358。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'前'的反义词是什么？"}, {"role": "assistant", "content": "'前'的反义词是'后'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 9 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 9 元，数量 2 支，一共 9 × 2 = 18 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 12 元，买 5 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 12 元，数量 5 支，一共 12 × 5 = 60 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 3 元，买 8 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 3 元，数量 8 支，一共 3 × 8 = 24 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 14 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 14 元，数量 6 支，一共 14 × 6 = 84 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 8 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 8 小时 = 240 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "94 乘 2 等于多少？"}, {"role": "assistant", "content": "94 × 2 = 188。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "40 米 等于多少 毫米？"}, {"role": "assistant", "content": "40 米 = 40000 毫米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 40 千米，行驶 4 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 40 千米/小时 × 时间 4 小时 = 160 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'买'的反义词是什么？"}, {"role": "assistant", "content": "'买'的反义词是'卖'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "54000 毫米 等于多少 米？"}, {"role": "assistant", "content": "54000 毫米 = 54 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 3 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 3 小时 = 150 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'高'的反义词是什么？"}, {"role": "assistant", "content": "'高'的反义词是'矮'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 5 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 5 元，数量 2 支，一共 5 × 2 = 10 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "882 减 633 等于多少？"}, {"role": "assistant", "content": "882 - 633 = 249。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "3840 分钟 等于多少 小时？"}, {"role": "assistant", "content": "3840 分钟 = 64 小时。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "19 米 等于多少 厘米？"}, {"role": "assistant", "content": "19 米 = 1900 厘米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 13 元，买 7 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 13 元，数量 7 支，一共 13 × 7 = 91 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 2 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 2 元，数量 12 支，一共 2 × 12 = 24 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 2 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 2 小时 = 60 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'多'的反义词是什么？"}, {"role": "assistant", "content": "'多'的反义词是'少'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'上'的反义词是什么？"}, {"role": "assistant", "content": "'上'的反义词是'下'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "57 千克 等于多少 克？"}, {"role": "assistant", "content": "57 千克 = 57000 克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "38 乘 9 等于多少？"}, {"role": "assistant", "content": "38 × 9 = 342。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 80 千米，行驶 4 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 80 千米/小时 × 时间 4 小时 = 320 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 20 千米，行驶 3 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 20 千米/小时 × 时间 3 小时 = 60 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'明亮'的反义词是什么？"}, {"role": "assistant", "content": "'明亮'的反义词是'黑暗'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 4 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 4 小时 = 280 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 3 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 3 小时 = 180 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 8 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 8 小时 = 480 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 16 元，买 5 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 16 元，数量 5 支，一共 16 × 5 = 80 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "67 乘 3 等于多少？"}, {"role": "assistant", "content": "67 × 3 = 201。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "10 乘 2 等于多少？"}, {"role": "assistant", "content": "10 × 2 = 20。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 15 元，买 10 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 15 元，数量 10 支，一共 15 × 10 = 150 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "873 减 866 等于多少？"}, {"role": "assistant", "content": "873 - 866 = 7。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'左'的反义词是什么？"}, {"role": "assistant", "content": "'左'的反义词是'右'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 18 元，买 8 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 18 元，数量 8 支，一共 18 × 8 = 144 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'满'的反义词是什么？"}, {"role": "assistant", "content": "'满'的反义词是'空'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "3900 厘米 等于多少 米？"}, {"role": "assistant", "content": "3900 厘米 = 39 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "512 减 329 等于多少？"}, {"role": "assistant", "content": "512 - 329 = 183。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "862 减 478 等于多少？"}, {"role": "assistant", "content": "862 - 478 = 384。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 18 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 18 元，数量 6 支，一共 18 × 6 = 108 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 11 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 11 元，数量 12 支，一共 11 × 12 = 132 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "57 乘 8 等于多少？"}, {"role": "assistant", "content": "57 × 8 = 456。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'勤劳'的反义词是什么？"}, {"role": "assistant", "content": "'勤劳'的反义词是'懒惰'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 8 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 8 元，数量 6 支，一共 8 × 6 = 48 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'整齐'的反义词是什么？"}, {"role": "assistant", "content": "'整齐'的反义词是'杂乱'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 20 元，买 7 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 20 元，数量 7 支，一共 20 × 7 = 140 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 9 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 9 小时 = 270 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'深'的反义词是什么？"}, {"role": "assistant", "content": "'深'的反义词是'浅'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "18 乘 9 等于多少？"}, {"role": "assistant", "content": "18 × 9 = 162。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 15 元，买 3 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 15 元，数量 3 支，一共 15 × 3 = 45 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 11 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 11 元，数量 6 支，一共 11 × 6 = 66 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'开'的反义词是什么？"}, {"role": "assistant", "content": "'开'的反义词是'关'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 15 元，买 5 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 15 元，数量 5 支，一共 15 × 5 = 75 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 9 元，买 5 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 9 元，数量 5 支，一共 9 × 5 = 45 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 5 小时 = 150 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "65000 克 等于多少 千克？"}, {"role": "assistant", "content": "65000 克 = 65 千克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "93 乘 4 等于多少？"}, {"role": "assistant", "content": "93 × 4 = 372。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "240 减 122 等于多少？"}, {"role": "assistant", "content": "240 - 122 = 118。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 4 元，买 3 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 4 元，数量 3 支，一共 4 × 3 = 12 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 6 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 6 小时 = 300 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "2820 分钟 等于多少 小时？"}, {"role": "assistant", "content": "2820 分钟 = 47 小时。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "14 乘 3 等于多少？"}, {"role": "assistant", "content": "14 × 3 = 42。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "2880 秒 等于多少 分？"}, {"role": "assistant", "content": "2880 秒 = 48 分。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "842 减 137 等于多少？"}, {"role": "assistant", "content": "842 - 137 = 705。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 9 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 9 元，数量 6 支，一共 9 × 6 = 54 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 12 元，买 3 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 12 元，数量 3 支，一共 12 × 3 = 36 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "724 加 456 等于多少？"}, {"role": "assistant", "content": "724 + 456 = 1180。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "51 千克 等于多少 克？"}, {"role": "assistant", "content": "51 千克 = 51000 克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "38 乘 3 等于多少？"}, {"role": "assistant", "content": "38 × 3 = 114。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 7 元，买 7 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 7 元，数量 7 支，一共 7 × 7 = 49 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "8 米 等于多少 厘米？"}, {"role": "assistant", "content": "8 米 = 800 厘米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "73000 毫米 等于多少 米？"}, {"role": "assistant", "content": "73000 毫米 = 73 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 9 元，买 10 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 9 元，数量 10 支，一共 9 × 10 = 90 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "18 分 等于多少 秒？"}, {"role": "assistant", "content": "18 分 = 1080 秒。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "24 元 等于多少 角？"}, {"role": "assistant", "content": "24 元 = 240 角。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 80 千米，行驶 8 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 80 千米/小时 × 时间 8 小时 = 640 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 20 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 20 元，数量 9 支，一共 20 × 9 = 180 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 18 元，买 4 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 18 元，数量 4 支，一共 18 × 4 = 72 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 10 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 10 元，数量 12 支，一共 10 × 12 = 120 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 17 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 17 元，数量 12 支，一共 17 × 12 = 204 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'宽'的反义词是什么？"}, {"role": "assistant", "content": "'宽'的反义词是'窄'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "69 小时 等于多少 分钟？"}, {"role": "assistant", "content": "69 小时 = 4140 分钟。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "84 元 等于多少 角？"}, {"role": "assistant", "content": "84 元 = 840 角。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 14 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 14 元，数量 2 支，一共 14 × 2 = 28 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "618 加 403 等于多少？"}, {"role": "assistant", "content": "618 + 403 = 1021。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "950 减 246 等于多少？"}, {"role": "assistant", "content": "950 - 246 = 704。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "693 减 559 等于多少？"}, {"role": "assistant", "content": "693 - 559 = 134。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 18 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 18 元，数量 2 支，一共 18 × 2 = 36 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 13 元，买 3 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 13 元，数量 3 支，一共 13 × 3 = 39 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 5 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 5 元，数量 9 支，一共 5 × 9 = 45 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "32 分 等于多少 秒？"}, {"role": "assistant", "content": "32 分 = 1920 秒。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'冷'的反义词是什么？"}, {"role": "assistant", "content": "'冷'的反义词是'热'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 15 元，买 7 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 15 元，数量 7 支，一共 15 × 7 = 105 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "826 减 778 等于多少？"}, {"role": "assistant", "content": "826 - 778 = 48。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 3 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 3 元，数量 2 支，一共 3 × 2 = 6 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "48 小时 等于多少 分钟？"}, {"role": "assistant", "content": "48 小时 = 2880 分钟。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 4 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 4 小时 = 240 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 6 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 6 元，数量 12 支，一共 6 × 12 = 72 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 2 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 2 元，数量 9 支，一共 2 × 9 = 18 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 20 元，买 12 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 20 元，数量 12 支，一共 20 × 12 = 240 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 16 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 16 元，数量 6 支，一共 16 × 6 = 96 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 14 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 14 元，数量 9 支，一共 14 × 9 = 126 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 3 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 3 小时 = 210 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 9 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 9 小时 = 630 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 6 元，买 11 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 6 元，数量 11 支，一共 6 × 11 = 66 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "86 乘 9 等于多少？"}, {"role": "assistant", "content": "86 × 9 = 774。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 17 元，买 11 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 17 元，数量 11 支，一共 17 × 11 = 187 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "6 小时 等于多少 分钟？"}, {"role": "assistant", "content": "6 小时 = 360 分钟。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 8 元，买 4 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 8 元，数量 4 支，一共 8 × 4 = 32 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 40 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 40 千米/小时 × 时间 5 小时 = 200 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "66 乘 5 等于多少？"}, {"role": "assistant", "content": "66 × 5 = 330。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 12 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 12 元，数量 2 支，一共 12 × 2 = 24 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "855 减 231 等于多少？"}, {"role": "assistant", "content": "855 - 231 = 624。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 2 元，买 2 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 2 元，数量 2 支，一共 2 × 2 = 4 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "42000 克 等于多少 千克？"}, {"role": "assistant", "content": "42000 克 = 42 千克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "593 减 307 等于多少？"}, {"role": "assistant", "content": "593 - 307 = 286。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 20 千米，行驶 8 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 20 千米/小时 × 时间 8 小时 = 160 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'快'的反义词是什么？"}, {"role": "assistant", "content": "'快'的反义词是'慢'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "95 乘 7 等于多少？"}, {"role": "assistant", "content": "95 × 7 = 665。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "98 乘 5 等于多少？"}, {"role": "assistant", "content": "98 × 5 = 490。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "72 乘 7 等于多少？"}, {"role": "assistant", "content": "72 × 7 = 504。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "9 米 等于多少 毫米？"}, {"role": "assistant", "content": "9 米 = 9000 毫米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 10 元，买 6 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 10 元，数量 6 支，一共 10 × 6 = 60 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'大'的反义词是什么？"}, {"role": "assistant", "content": "'大'的反义词是'小'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 80 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 80 千米/小时 × 时间 5 小时 = 400 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "16000 毫米 等于多少 米？"}, {"role": "assistant", "content": "16000 毫米 = 16 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 7 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 7 小时 = 210 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "12 分 等于多少 秒？"}, {"role": "assistant", "content": "12 分 = 720 秒。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 50 千米，行驶 7 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 50 千米/小时 × 时间 7 小时 = 350 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 20 千米，行驶 5 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 20 千米/小时 × 时间 5 小时 = 100 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 7 元，买 10 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 7 元，数量 10 支，一共 7 × 10 = 70 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "56000 毫米 等于多少 米？"}, {"role": "assistant", "content": "56000 毫米 = 56 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "90 千克 等于多少 克？"}, {"role": "assistant", "content": "90 千克 = 90000 克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 4 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 4 元，数量 9 支，一共 4 × 9 = 36 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 20 元，买 4 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 20 元，数量 4 支，一共 20 × 4 = 80 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "78 分 等于多少 秒？"}, {"role": "assistant", "content": "78 分 = 4680 秒。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "508 减 464 等于多少？"}, {"role": "assistant", "content": "508 - 464 = 44。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "96 乘 9 等于多少？"}, {"role": "assistant", "content": "96 × 9 = 864。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 2 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 2 小时 = 120 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "821 减 721 等于多少？"}, {"role": "assistant", "content": "821 - 721 = 100。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 13 元，买 9 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 13 元，数量 9 支，一共 13 × 9 = 117 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "66 乘 6 等于多少？"}, {"role": "assistant", "content": "66 × 6 = 396。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "354 减 303 等于多少？"}, {"role": "assistant", "content": "354 - 303 = 51。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "54 乘 8 等于多少？"}, {"role": "assistant", "content": "54 × 8 = 432。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "960 角 等于多少 元？"}, {"role": "assistant", "content": "960 角 = 96 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "69 乘 5 等于多少？"}, {"role": "assistant", "content": "69 × 5 = 345。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "620 加 765 等于多少？"}, {"role": "assistant", "content": "620 + 765 = 1385。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 9 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 9 小时 = 540 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "7500 厘米 等于多少 米？"}, {"role": "assistant", "content": "7500 厘米 = 75 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "96 千克 等于多少 克？"}, {"role": "assistant", "content": "96 千克 = 96000 克。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "'黑'的反义词是什么？"}, {"role": "assistant", "content": "'黑'的反义词是'白'。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 60 千米，行驶 6 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 60 千米/小时 × 时间 6 小时 = 360 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "953 减 665 等于多少？"}, {"role": "assistant", "content": "953 - 665 = 288。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "72 元 等于多少 角？"}, {"role": "assistant", "content": "72 元 = 720 角。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "399 加 169 等于多少？"}, {"role": "assistant", "content": "399 + 169 = 568。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "288 减 286 等于多少？"}, {"role": "assistant", "content": "288 - 286 = 2。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一支笔 20 元，买 5 支一共需要多少钱？"}, {"role": "assistant", "content": "单价 20 元，数量 5 支，一共 20 × 5 = 100 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "330 角 等于多少 元？"}, {"role": "assistant", "content": "330 角 = 33 元。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "412 减 222 等于多少？"}, {"role": "assistant", "content": "412 - 222 = 190。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 7 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 7 小时 = 490 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "72 乘 8 等于多少？"}, {"role": "assistant", "content": "72 × 8 = 576。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "233 加 128 等于多少？"}, {"role": "assistant", "content": "233 + 128 = 361。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "94 米 等于多少 厘米？"}, {"role": "assistant", "content": "94 米 = 9400 厘米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 30 千米，行驶 6 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 30 千米/小时 × 时间 6 小时 = 180 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "68 米 等于多少 毫米？"}, {"role": "assistant", "content": "68 米 = 68000 毫米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "2520 分钟 等于多少 小时？"}, {"role": "assistant", "content": "2520 分钟 = 42 小时。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一辆汽车每小时行驶 70 千米，行驶 6 小时，一共行驶多少千米？"}, {"role": "assistant", "content": "速度 70 千米/小时 × 时间 6 小时 = 420 千米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "50000 毫米 等于多少 米？"}, {"role": "assistant", "content": "50000 毫米 = 50 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "10000 毫米 等于多少 米？"}, {"role": "assistant", "content": "10000 毫米 = 10 米。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "20 分 等于多少 秒？"}, {"role": "assistant", "content": "20 分 = 1200 秒。"}], "difficulty": "medium"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 7 小时，乙管单独注满需要 42 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/7，乙管每小时注 1/42，两管同开每小时注 1/7 + 1/42 = 49/294。注满需要 294 ÷ 49 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 210 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 30 = 70 千米/小时。相遇时间 = 距离 ÷ 速度和 = 210 ÷ 70 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "878 除以 10，商和余数分别是多少？"}, {"role": "assistant", "content": "878 ÷ 10 = 87 余 8，即商是 87，余数是 8。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "442 乘 80 等于多少？"}, {"role": "assistant", "content": "442 × 80 = 35360。把 80 拆成 80 + 0：442 × 80 = 35360，442 × 0 = 0，相加得 35360 = 35360。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 5, 11, 19, 29，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 4, 6, 8, 10，差递增 2。下一个差是 14，下一个数是 29 + 14 = 43。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "400 克糖水中含糖 200 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 200 ÷ 400 = 50%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 12 个头，从下面数有 30 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 12 - x 只。列方程 2x + 4(12 - x) = 30，化简得 48 - 2x = 30，x = 9。所以鸡 9 只，兔 3 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "235 乘 74 等于多少？"}, {"role": "assistant", "content": "235 × 74 = 17390。把 74 拆成 70 + 4：235 × 70 = 16450，235 × 4 = 940，相加得 17390 = 17390。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：14, 17, 20, 23, 26，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 3，下一个数是 26 + 3 = 29。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 300 千米的两地同时出发，相向而行。甲车每小时行 30 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 30 + 30 = 60 千米/小时。相遇时间 = 距离 ÷ 速度和 = 300 ÷ 60 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "891 乘 44 等于多少？"}, {"role": "assistant", "content": "891 × 44 = 39204。把 44 拆成 40 + 4：891 × 40 = 35640，891 × 4 = 3564，相加得 39204 = 39204。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 24 个头，从下面数有 68 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 24 - x 只。列方程 2x + 4(24 - x) = 68，化简得 96 - 2x = 68，x = 14。所以鸡 14 只，兔 10 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 100 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 30 = 50 千米/小时。相遇时间 = 距离 ÷ 速度和 = 100 ÷ 50 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 3 小时，乙管单独注满需要 6 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/3，乙管每小时注 1/6，两管同开每小时注 1/3 + 1/6 = 9/18。注满需要 18 ÷ 9 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 12 小时，乙管单独注满需要 12 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/12，乙管每小时注 1/12，两管同开每小时注 1/12 + 1/12 = 24/144。注满需要 144 ÷ 24 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 4 小时，乙管单独注满需要 12 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/4，乙管每小时注 1/12，两管同开每小时注 1/4 + 1/12 = 16/48。注满需要 48 ÷ 16 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "342 乘 64 等于多少？"}, {"role": "assistant", "content": "342 × 64 = 21888。把 64 拆成 60 + 4：342 × 60 = 20520，342 × 4 = 1368，相加得 21888 = 21888。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "1000 克糖水中含糖 100 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 100 ÷ 1000 = 10%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "224 乘 84 等于多少？"}, {"role": "assistant", "content": "224 × 84 = 18816。把 84 拆成 80 + 4：224 × 80 = 17920，224 × 4 = 896，相加得 18816 = 18816。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 20 个头，从下面数有 64 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 20 - x 只。列方程 2x + 4(20 - x) = 64，化简得 80 - 2x = 64，x = 8。所以鸡 8 只，兔 12 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "185 乘 27 等于多少？"}, {"role": "assistant", "content": "185 × 27 = 4995。把 27 拆成 20 + 7：185 × 20 = 3700，185 × 7 = 1295，相加得 4995 = 4995。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：18, 21, 24, 27, 30，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 3，下一个数是 30 + 3 = 33。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：2, 6, 18, 54, 162，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 3，下一个数是 162 × 3 = 486。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "507 乘 34 等于多少？"}, {"role": "assistant", "content": "507 × 34 = 17238。把 34 拆成 30 + 4：507 × 30 = 15210，507 × 4 = 2028，相加得 17238 = 17238。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "400 克糖水中含糖 80 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 80 ÷ 400 = 20%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 2, 6, 13, 23，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 1, 4, 7, 10，差递增 3。下一个差是 16，下一个数是 23 + 16 = 39。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 6, 10, 15, 21，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 3, 4, 5, 6，差递增 1。下一个差是 8，下一个数是 21 + 8 = 29。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "989 乘 61 等于多少？"}, {"role": "assistant", "content": "989 × 61 = 60329。把 61 拆成 60 + 1：989 × 60 = 59340，989 × 1 = 989，相加得 60329 = 60329。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 25 个头，从下面数有 86 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 25 - x 只。列方程 2x + 4(25 - x) = 86，化简得 100 - 2x = 86，x = 7。所以鸡 7 只，兔 18 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "853 乘 56 等于多少？"}, {"role": "assistant", "content": "853 × 56 = 47768。把 56 拆成 50 + 6：853 × 50 = 42650，853 × 6 = 5118，相加得 47768 = 47768。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "500 克糖水中含糖 50 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 50 ÷ 500 = 10%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "984 乘 84 等于多少？"}, {"role": "assistant", "content": "984 × 84 = 82656。把 84 拆成 80 + 4：984 × 80 = 78720，984 × 4 = 3936，相加得 82656 = 82656。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 400 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 30 = 80 千米/小时。相遇时间 = 距离 ÷ 速度和 = 400 ÷ 80 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 22 个头，从下面数有 48 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 22 - x 只。列方程 2x + 4(22 - x) = 48，化简得 88 - 2x = 48，x = 20。所以鸡 20 只，兔 2 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 10 小时，乙管单独注满需要 15 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/10，乙管每小时注 1/15，两管同开每小时注 1/10 + 1/15 = 25/150。注满需要 150 ÷ 25 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 3, 9, 27, 81，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 3，下一个数是 81 × 3 = 243。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "318 乘 38 等于多少？"}, {"role": "assistant", "content": "318 × 38 = 12084。把 38 拆成 30 + 8：318 × 30 = 9540，318 × 8 = 2544，相加得 12084 = 12084。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 5 小时，乙管单独注满需要 20 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/5，乙管每小时注 1/20，两管同开每小时注 1/5 + 1/20 = 25/100。注满需要 100 ÷ 25 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 240 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 40 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 40 = 60 千米/小时。相遇时间 = 距离 ÷ 速度和 = 240 ÷ 60 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "629 乘 17 等于多少？"}, {"role": "assistant", "content": "629 × 17 = 10693。把 17 拆成 10 + 7：629 × 10 = 6290，629 × 7 = 4403，相加得 10693 = 10693。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "490 乘 81 等于多少？"}, {"role": "assistant", "content": "490 × 81 = 39690。把 81 拆成 80 + 1：490 × 80 = 39200，490 × 1 = 490，相加得 39690 = 39690。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 6 小时，乙管单独注满需要 30 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/6，乙管每小时注 1/30，两管同开每小时注 1/6 + 1/30 = 36/180。注满需要 180 ÷ 36 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 180 千米的两地同时出发，相向而行。甲车每小时行 30 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 30 + 60 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 180 ÷ 90 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 8 小时，乙管单独注满需要 24 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/8，乙管每小时注 1/24，两管同开每小时注 1/8 + 1/24 = 32/192。注满需要 192 ÷ 32 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 19 个头，从下面数有 66 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 19 - x 只。列方程 2x + 4(19 - x) = 66，化简得 76 - 2x = 66，x = 5。所以鸡 5 只，兔 14 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 6, 12, 24, 48，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 2，下一个数是 48 × 2 = 96。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "148 除以 11，商和余数分别是多少？"}, {"role": "assistant", "content": "148 ÷ 11 = 13 余 5，即商是 13，余数是 5。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "929 乘 32 等于多少？"}, {"role": "assistant", "content": "929 × 32 = 29728。把 32 拆成 30 + 2：929 × 30 = 27870，929 × 2 = 1858，相加得 29728 = 29728。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 300 千米的两地同时出发，相向而行。甲车每小时行 30 千米，乙车每小时行 20 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 30 + 20 = 50 千米/小时。相遇时间 = 距离 ÷ 速度和 = 300 ÷ 50 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 5 个头，从下面数有 16 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 5 - x 只。列方程 2x + 4(5 - x) = 16，化简得 20 - 2x = 16，x = 2。所以鸡 2 只，兔 3 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "561 乘 36 等于多少？"}, {"role": "assistant", "content": "561 × 36 = 20196。把 36 拆成 30 + 6：561 × 30 = 16830，561 × 6 = 3366，相加得 20196 = 20196。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：13, 19, 25, 31, 37，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 6，下一个数是 37 + 6 = 43。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 36 个头，从下面数有 110 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 36 - x 只。列方程 2x + 4(36 - x) = 110，化简得 144 - 2x = 110，x = 17。所以鸡 17 只，兔 19 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 200 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 20 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 20 = 40 千米/小时。相遇时间 = 距离 ÷ 速度和 = 200 ÷ 40 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "1000 克糖水中含糖 500 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 500 ÷ 1000 = 50%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 27 个头，从下面数有 88 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 27 - x 只。列方程 2x + 4(27 - x) = 88，化简得 108 - 2x = 88，x = 10。所以鸡 10 只，兔 17 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 160 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 20 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 20 = 40 千米/小时。相遇时间 = 距离 ÷ 速度和 = 160 ÷ 40 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：7, 19, 31, 43, 55，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 12，下一个数是 55 + 12 = 67。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "266 乘 38 等于多少？"}, {"role": "assistant", "content": "266 × 38 = 10108。把 38 拆成 30 + 8：266 × 30 = 7980，266 × 8 = 2128，相加得 10108 = 10108。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "307 乘 32 等于多少？"}, {"role": "assistant", "content": "307 × 32 = 9824。把 32 拆成 30 + 2：307 × 30 = 9210，307 × 2 = 614，相加得 9824 = 9824。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：9, 13, 18, 24, 31，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 4, 5, 6, 7，差递增 1。下一个差是 9，下一个数是 31 + 9 = 40。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 36 个头，从下面数有 106 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 36 - x 只。列方程 2x + 4(36 - x) = 106，化简得 144 - 2x = 106，x = 19。所以鸡 19 只，兔 17 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 2, 4, 8, 16，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 2，下一个数是 16 × 2 = 32。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：7, 12, 20, 31, 45，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 5, 8, 11, 14，差递增 3。下一个差是 20，下一个数是 45 + 20 = 65。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：9, 10, 14, 21, 31，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 1, 4, 7, 10，差递增 3。下一个差是 16，下一个数是 31 + 16 = 47。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "842 乘 38 等于多少？"}, {"role": "assistant", "content": "842 × 38 = 31996。把 38 拆成 30 + 8：842 × 30 = 25260，842 × 8 = 6736，相加得 31996 = 31996。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "412 除以 6，商和余数分别是多少？"}, {"role": "assistant", "content": "412 ÷ 6 = 68 余 4，即商是 68，余数是 4。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "601 乘 91 等于多少？"}, {"role": "assistant", "content": "601 × 91 = 54691。把 91 拆成 90 + 1：601 × 90 = 54090，601 × 1 = 601，相加得 54691 = 54691。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "571 除以 10，商和余数分别是多少？"}, {"role": "assistant", "content": "571 ÷ 10 = 57 余 1，即商是 57，余数是 1。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 25 个头，从下面数有 68 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 25 - x 只。列方程 2x + 4(25 - x) = 68，化简得 100 - 2x = 68，x = 16。所以鸡 16 只，兔 9 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 600 千米的两地同时出发，相向而行。甲车每小时行 60 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 60 + 60 = 120 千米/小时。相遇时间 = 距离 ÷ 速度和 = 600 ÷ 120 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 7 个头，从下面数有 22 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 7 - x 只。列方程 2x + 4(7 - x) = 22，化简得 28 - 2x = 22，x = 3。所以鸡 3 只，兔 4 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：15, 23, 31, 39, 47，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 8，下一个数是 47 + 8 = 55。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：4, 9, 14, 19, 24，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 5，下一个数是 24 + 5 = 29。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "722 乘 33 等于多少？"}, {"role": "assistant", "content": "722 × 33 = 23826。把 33 拆成 30 + 3：722 × 30 = 21660，722 × 3 = 2166，相加得 23826 = 23826。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "166 乘 13 等于多少？"}, {"role": "assistant", "content": "166 × 13 = 2158。把 13 拆成 10 + 3：166 × 10 = 1660，166 × 3 = 498，相加得 2158 = 2158。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 660 千米的两地同时出发，相向而行。甲车每小时行 60 千米，乙车每小时行 50 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 60 + 50 = 110 千米/小时。相遇时间 = 距离 ÷ 速度和 = 660 ÷ 110 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 120 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 40 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 40 = 60 千米/小时。相遇时间 = 距离 ÷ 速度和 = 120 ÷ 60 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：14, 23, 32, 41, 50，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 9，下一个数是 50 + 9 = 59。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 18 个头，从下面数有 62 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 18 - x 只。列方程 2x + 4(18 - x) = 62，化简得 72 - 2x = 62，x = 5。所以鸡 5 只，兔 13 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "411 除以 12，商和余数分别是多少？"}, {"role": "assistant", "content": "411 ÷ 12 = 34 余 3，即商是 34，余数是 3。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 10 个头，从下面数有 30 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 10 - x 只。列方程 2x + 4(10 - x) = 30，化简得 40 - 2x = 30，x = 5。所以鸡 5 只，兔 5 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "222 乘 19 等于多少？"}, {"role": "assistant", "content": "222 × 19 = 4218。把 19 拆成 10 + 9：222 × 10 = 2220，222 × 9 = 1998，相加得 4218 = 4218。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "200 克糖水中含糖 50 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 50 ÷ 200 = 25%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "394 除以 11，商和余数分别是多少？"}, {"role": "assistant", "content": "394 ÷ 11 = 35 余 9，即商是 35，余数是 9。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 180 千米的两地同时出发，相向而行。甲车每小时行 60 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 60 + 30 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 180 ÷ 90 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：5, 15, 25, 35, 45，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 10，下一个数是 45 + 10 = 55。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 540 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 40 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 40 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 540 ÷ 90 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 13 个头，从下面数有 46 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 13 - x 只。列方程 2x + 4(13 - x) = 46，化简得 52 - 2x = 46，x = 3。所以鸡 3 只，兔 10 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 14 个头，从下面数有 34 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 14 - x 只。列方程 2x + 4(14 - x) = 34，化简得 56 - 2x = 34，x = 11。所以鸡 11 只，兔 3 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 27 个头，从下面数有 82 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 27 - x 只。列方程 2x + 4(27 - x) = 82，化简得 108 - 2x = 82，x = 13。所以鸡 13 只，兔 14 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "997 乘 48 等于多少？"}, {"role": "assistant", "content": "997 × 48 = 47856。把 48 拆成 40 + 8：997 × 40 = 39880，997 × 8 = 7976，相加得 47856 = 47856。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "130 乘 50 等于多少？"}, {"role": "assistant", "content": "130 × 50 = 6500。把 50 拆成 50 + 0：130 × 50 = 6500，130 × 0 = 0，相加得 6500 = 6500。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 6 小时，乙管单独注满需要 6 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/6，乙管每小时注 1/6，两管同开每小时注 1/6 + 1/6 = 12/36。注满需要 36 ÷ 12 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 440 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 60 = 110 千米/小时。相遇时间 = 距离 ÷ 速度和 = 440 ÷ 110 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 8 小时，乙管单独注满需要 8 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/8，乙管每小时注 1/8，两管同开每小时注 1/8 + 1/8 = 16/64。注满需要 64 ÷ 16 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 14 个头，从下面数有 48 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 14 - x 只。列方程 2x + 4(14 - x) = 48，化简得 56 - 2x = 48，x = 4。所以鸡 4 只，兔 10 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 600 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 50 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 50 = 100 千米/小时。相遇时间 = 距离 ÷ 速度和 = 600 ÷ 100 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：4, 12, 36, 108, 324，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 3，下一个数是 324 × 3 = 972。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 26 个头，从下面数有 80 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 26 - x 只。列方程 2x + 4(26 - x) = 80，化简得 104 - 2x = 80，x = 12。所以鸡 12 只，兔 14 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "432 乘 21 等于多少？"}, {"role": "assistant", "content": "432 × 21 = 9072。把 21 拆成 20 + 1：432 × 20 = 8640，432 × 1 = 432，相加得 9072 = 9072。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 31 个头，从下面数有 100 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 31 - x 只。列方程 2x + 4(31 - x) = 100，化简得 124 - 2x = 100，x = 12。所以鸡 12 只，兔 19 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "293 乘 37 等于多少？"}, {"role": "assistant", "content": "293 × 37 = 10841。把 37 拆成 30 + 7：293 × 30 = 8790，293 × 7 = 2051，相加得 10841 = 10841。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "146 除以 7，商和余数分别是多少？"}, {"role": "assistant", "content": "146 ÷ 7 = 20 余 6，即商是 20，余数是 6。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 660 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 60 = 110 千米/小时。相遇时间 = 距离 ÷ 速度和 = 660 ÷ 110 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "1000 克糖水中含糖 200 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 200 ÷ 1000 = 20%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 240 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 20 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 20 = 40 千米/小时。相遇时间 = 距离 ÷ 速度和 = 240 ÷ 40 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 30 个头，从下面数有 96 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 30 - x 只。列方程 2x + 4(30 - x) = 96，化简得 120 - 2x = 96，x = 12。所以鸡 12 只，兔 18 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：16, 18, 20, 22, 24，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 2，下一个数是 24 + 2 = 26。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 14 个头，从下面数有 52 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 14 - x 只。列方程 2x + 4(14 - x) = 52，化简得 56 - 2x = 52，x = 2。所以鸡 2 只，兔 12 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "193 乘 29 等于多少？"}, {"role": "assistant", "content": "193 × 29 = 5597。把 29 拆成 20 + 9：193 × 20 = 3860，193 × 9 = 1737，相加得 5597 = 5597。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 8, 16, 27, 41，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 5, 8, 11, 14，差递增 3。下一个差是 20，下一个数是 41 + 20 = 61。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 280 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 30 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 30 = 70 千米/小时。相遇时间 = 距离 ÷ 速度和 = 280 ÷ 70 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 27 个头，从下面数有 94 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 27 - x 只。列方程 2x + 4(27 - x) = 94，化简得 108 - 2x = 94，x = 7。所以鸡 7 只，兔 20 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 13 个头，从下面数有 48 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 13 - x 只。列方程 2x + 4(13 - x) = 48，化简得 52 - 2x = 48，x = 2。所以鸡 2 只，兔 11 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "800 克糖水中含糖 200 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 200 ÷ 800 = 25%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：7, 8, 12, 19, 29，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 1, 4, 7, 10，差递增 3。下一个差是 16，下一个数是 29 + 16 = 45。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 450 千米的两地同时出发，相向而行。甲车每小时行 30 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 30 + 60 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 450 ÷ 90 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 19 个头，从下面数有 62 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 19 - x 只。列方程 2x + 4(19 - x) = 62，化简得 76 - 2x = 62，x = 7。所以鸡 7 只，兔 12 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 16 个头，从下面数有 38 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 16 - x 只。列方程 2x + 4(16 - x) = 38，化简得 64 - 2x = 38，x = 13。所以鸡 13 只，兔 3 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：19, 31, 43, 55, 67，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 12，下一个数是 67 + 12 = 79。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "564 乘 27 等于多少？"}, {"role": "assistant", "content": "564 × 27 = 15228。把 27 拆成 20 + 7：564 × 20 = 11280，564 × 7 = 3948，相加得 15228 = 15228。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 270 千米的两地同时出发，相向而行。甲车每小时行 30 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 30 + 60 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 270 ÷ 90 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：20, 28, 36, 44, 52，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 8，下一个数是 52 + 8 = 60。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "966 乘 81 等于多少？"}, {"role": "assistant", "content": "966 × 81 = 78246。把 81 拆成 80 + 1：966 × 80 = 77280，966 × 1 = 966，相加得 78246 = 78246。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "892 乘 55 等于多少？"}, {"role": "assistant", "content": "892 × 55 = 49060。把 55 拆成 50 + 5：892 × 50 = 44600，892 × 5 = 4460，相加得 49060 = 49060。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 6 小时，乙管单独注满需要 12 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/6，乙管每小时注 1/12，两管同开每小时注 1/6 + 1/12 = 18/72。注满需要 72 ÷ 18 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "481 乘 61 等于多少？"}, {"role": "assistant", "content": "481 × 61 = 29341。把 61 拆成 60 + 1：481 × 60 = 28860，481 × 1 = 481，相加得 29341 = 29341。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "270 乘 85 等于多少？"}, {"role": "assistant", "content": "270 × 85 = 22950。把 85 拆成 80 + 5：270 × 80 = 21600，270 × 5 = 1350，相加得 22950 = 22950。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "463 乘 43 等于多少？"}, {"role": "assistant", "content": "463 × 43 = 19909。把 43 拆成 40 + 3：463 × 40 = 18520，463 × 3 = 1389，相加得 19909 = 19909。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 35 个头，从下面数有 106 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 35 - x 只。列方程 2x + 4(35 - x) = 106，化简得 140 - 2x = 106，x = 17。所以鸡 17 只，兔 18 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 20 个头，从下面数有 44 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 20 - x 只。列方程 2x + 4(20 - x) = 44，化简得 80 - 2x = 44，x = 18。所以鸡 18 只，兔 2 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "157 乘 85 等于多少？"}, {"role": "assistant", "content": "157 × 85 = 13345。把 85 拆成 80 + 5：157 × 80 = 12560，157 × 5 = 785，相加得 13345 = 13345。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：12, 18, 24, 30, 36，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 6，下一个数是 36 + 6 = 42。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "116 除以 8，商和余数分别是多少？"}, {"role": "assistant", "content": "116 ÷ 8 = 14 余 4，即商是 14，余数是 4。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "515 乘 41 等于多少？"}, {"role": "assistant", "content": "515 × 41 = 21115。把 41 拆成 40 + 1：515 × 40 = 20600，515 × 1 = 515，相加得 21115 = 21115。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "583 除以 7，商和余数分别是多少？"}, {"role": "assistant", "content": "583 ÷ 7 = 83 余 2，即商是 83，余数是 2。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "933 除以 11，商和余数分别是多少？"}, {"role": "assistant", "content": "933 ÷ 11 = 84 余 9，即商是 84，余数是 9。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：14, 16, 18, 20, 22，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 2，下一个数是 22 + 2 = 24。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 300 千米的两地同时出发，相向而行。甲车每小时行 50 千米，乙车每小时行 50 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 50 + 50 = 100 千米/小时。相遇时间 = 距离 ÷ 速度和 = 300 ÷ 100 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 10 小时，乙管单独注满需要 10 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/10，乙管每小时注 1/10，两管同开每小时注 1/10 + 1/10 = 20/100。注满需要 100 ÷ 20 = 5 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 480 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 40 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 40 = 80 千米/小时。相遇时间 = 距离 ÷ 速度和 = 480 ÷ 80 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 240 千米的两地同时出发，相向而行。甲车每小时行 60 千米，乙车每小时行 20 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 60 + 20 = 80 千米/小时。相遇时间 = 距离 ÷ 速度和 = 240 ÷ 80 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "498 除以 10，商和余数分别是多少？"}, {"role": "assistant", "content": "498 ÷ 10 = 49 余 8，即商是 49，余数是 8。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "311 乘 11 等于多少？"}, {"role": "assistant", "content": "311 × 11 = 3421。把 11 拆成 10 + 1：311 × 10 = 3110，311 × 1 = 311，相加得 3421 = 3421。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 21 个头，从下面数有 52 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 21 - x 只。列方程 2x + 4(21 - x) = 52，化简得 84 - 2x = 52，x = 16。所以鸡 16 只，兔 5 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 240 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 40 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 40 = 80 千米/小时。相遇时间 = 距离 ÷ 速度和 = 240 ÷ 80 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "282 乘 95 等于多少？"}, {"role": "assistant", "content": "282 × 95 = 26790。把 95 拆成 90 + 5：282 × 90 = 25380，282 × 5 = 1410，相加得 26790 = 26790。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "731 除以 8，商和余数分别是多少？"}, {"role": "assistant", "content": "731 ÷ 8 = 91 余 3，即商是 91，余数是 3。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 300 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 60 = 100 千米/小时。相遇时间 = 距离 ÷ 速度和 = 300 ÷ 100 = 3 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 3, 7, 13, 21，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 2, 4, 6, 8，差递增 2。下一个差是 12，下一个数是 21 + 12 = 33。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "148 乘 36 等于多少？"}, {"role": "assistant", "content": "148 × 36 = 5328。把 36 拆成 30 + 6：148 × 30 = 4440，148 × 6 = 888，相加得 5328 = 5328。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "364 乘 66 等于多少？"}, {"role": "assistant", "content": "364 × 66 = 24024。把 66 拆成 60 + 6：364 × 60 = 21840，364 × 6 = 2184，相加得 24024 = 24024。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 200 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 60 = 100 千米/小时。相遇时间 = 距离 ÷ 速度和 = 200 ÷ 100 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "822 乘 62 等于多少？"}, {"role": "assistant", "content": "822 × 62 = 50964。把 62 拆成 60 + 2：822 × 60 = 49320，822 × 2 = 1644，相加得 50964 = 50964。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "288 除以 7，商和余数分别是多少？"}, {"role": "assistant", "content": "288 ÷ 7 = 41 余 1，即商是 41，余数是 1。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：18, 29, 40, 51, 62，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 11，下一个数是 62 + 11 = 73。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "1000 克糖水中含糖 250 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 250 ÷ 1000 = 25%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 9, 27, 81, 243，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的比为 3，下一个数是 243 × 3 = 729。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 540 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 50 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 50 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 540 ÷ 90 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "一个水池，甲管单独注满需要 9 小时，乙管单独注满需要 18 小时，两管同时开需要几小时注满？"}, {"role": "assistant", "content": "设总量为 1。甲管每小时注 1/9，乙管每小时注 1/18，两管同开每小时注 1/9 + 1/18 = 27/162。注满需要 162 ÷ 27 = 6 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "158 乘 55 等于多少？"}, {"role": "assistant", "content": "158 × 55 = 8690。把 55 拆成 50 + 5：158 × 50 = 7900，158 × 5 = 790，相加得 8690 = 8690。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "800 克糖水中含糖 160 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 160 ÷ 800 = 20%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 360 千米的两地同时出发，相向而行。甲车每小时行 40 千米，乙车每小时行 50 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 40 + 50 = 90 千米/小时。相遇时间 = 距离 ÷ 速度和 = 360 ÷ 90 = 4 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "926 乘 62 等于多少？"}, {"role": "assistant", "content": "926 × 62 = 57412。把 62 拆成 60 + 2：926 × 60 = 55560，926 × 2 = 1852，相加得 57412 = 57412。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 4, 6, 9, 13，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 1, 2, 3, 4，差递增 1。下一个差是 6，下一个数是 13 + 6 = 19。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "800 克糖水中含糖 400 克，这种糖水的浓度是多少？"}, {"role": "assistant", "content": "浓度 = 糖 ÷ 糖水 = 400 ÷ 800 = 50%。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "416 乘 65 等于多少？"}, {"role": "assistant", "content": "416 × 65 = 27040。把 65 拆成 60 + 5：416 × 60 = 24960，416 × 5 = 2080，相加得 27040 = 27040。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "499 乘 43 等于多少？"}, {"role": "assistant", "content": "499 × 43 = 21457。把 43 拆成 40 + 3：499 × 40 = 19960，499 × 3 = 1497，相加得 21457 = 21457。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 37 个头，从下面数有 108 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 37 - x 只。列方程 2x + 4(37 - x) = 108，化简得 148 - 2x = 108，x = 20。所以鸡 20 只，兔 17 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 11 个头，从下面数有 40 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 11 - x 只。列方程 2x + 4(11 - x) = 40，化简得 44 - 2x = 40，x = 2。所以鸡 2 只，兔 9 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "甲、乙两车分别从相距 160 千米的两地同时出发，相向而行。甲车每小时行 20 千米，乙车每小时行 60 千米，几小时后两车相遇？"}, {"role": "assistant", "content": "两车速度和为 20 + 60 = 80 千米/小时。相遇时间 = 距离 ÷ 速度和 = 160 ÷ 80 = 2 小时。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：1, 3, 9, 19, 33，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 2, 6, 10, 14，差递增 4。下一个差是 22，下一个数是 33 + 22 = 55。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：14, 24, 34, 44, 54，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差恒为 10，下一个数是 54 + 10 = 64。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：5, 7, 13, 23, 37，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 2, 6, 10, 14，差递增 4。下一个差是 22，下一个数是 37 + 22 = 59。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "鸡兔同笼，从上面数有 19 个头，从下面数有 60 只脚，鸡和兔各有几只？"}, {"role": "assistant", "content": "设鸡 x 只，兔 19 - x 只。列方程 2x + 4(19 - x) = 60，化简得 76 - 2x = 60，x = 8。所以鸡 8 只，兔 11 只。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：8, 9, 11, 14, 18，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 1, 2, 3, 4，差递增 1。下一个差是 6，下一个数是 18 + 6 = 24。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "368 除以 12，商和余数分别是多少？"}, {"role": "assistant", "content": "368 ÷ 12 = 30 余 8，即商是 30，余数是 8。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "找规律：3, 7, 15, 27, 43，下一个数是多少？"}, {"role": "assistant", "content": "相邻两项的差依次是 4, 8, 12, 16，差递增 4。下一个差是 24，下一个数是 43 + 24 = 67。"}], "difficulty": "hard"} |
| {"messages": [{"role": "user", "content": "230 除以 11，商和余数分别是多少？"}, {"role": "assistant", "content": "230 ÷ 11 = 20 余 10，即商是 20，余数是 10。"}], "difficulty": "hard"} |
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