id
int64
1
735k
topic
stringclasses
11 values
difficulty
stringclasses
2 values
question
stringlengths
12
91
answer
stringlengths
1
11
reasoning
stringlengths
20
98
category
stringclasses
19 values
301
percentages
easy
What is 83% of 65?
53.95
Calculate 83/100 * 65 = 0.83*65 = 53.95.
percentages
302
word_problems
easy
If you have 94 candies and you buy 20 more candies, how many candies do you have in total?
114
Add initial 94 plus bought 20: 94+20=114.
addition_word
303
arithmetic
easy
What is 456 / 19?
24
Divide: 456 ÷ 19 = 24 because 19*24=456.
division
304
statistics
easy
What is the mean (average) of 13, 31, 69?
37.67
Mean = sum/count. Sum = 13+31+69=113. Count=3. Mean=113/3=37.67.
mean
305
algebra
easy
Solve for x: 13x + 8 = 47
3
Subtract 8 from both sides: 13x = 47-8=39. Then divide by 13: x = 39/13 = 3.
linear_equation
306
calculus
medium
What is the indefinite integral of x^5 dx?
x^6/6 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^5 = x^6/6 + C.
integral
307
algebra
easy
Solve for x: 14x + 33 = -163
-14
Subtract 33 from both sides: 14x = -163-33=-196. Then divide by 14: x = -196/14 = -14.
linear_equation
308
statistics
easy
What is the mean (average) of 53, 36, 5, 89, 48?
46.2
Mean = sum/count. Sum = 53+36+5+89+48=231. Count=5. Mean=231/5=46.2.
mean
309
fractions
medium
What is 15/16 + 8/13? Give as simplified fraction.
323/208
Common denominator 16*13=208. 15/16=195/208, 8/13=128/208. Sum = 323/208 = 323/208 simplified.
fraction_operations
310
number_theory
medium
What is the LCM (least common multiple) of 70 and 83?
5810
LCM = |70*83| / GCD(70,83). GCD=1, so LCM=5810/1=5810.
lcm
311
arithmetic
easy
What is 408 + 283?
691
Add the two numbers: 408 + 283 = 691.
basic_operations
312
word_problems
easy
If you have 16 books and you buy 43 more books, how many books do you have in total?
59
Add initial 16 plus bought 43: 16+43=59.
addition_word
313
arithmetic
easy
What is 52 + 806?
858
Add the two numbers: 52 + 806 = 858.
basic_operations
314
fractions
medium
What is 3/19 + 7/20? Give as simplified fraction.
193/380
Common denominator 19*20=380. 3/19=60/380, 7/20=133/380. Sum = 193/380 = 193/380 simplified.
fraction_operations
315
percentages
easy
What is 43% of 793?
340.99
Calculate 43/100 * 793 = 0.43*793 = 340.99.
percentages
316
algebra
easy
Solve for x: 20x - 50 = -110
-3
Add 50 to both sides: 20x = -110+50=-60. Then x = -60/20 = -3.
linear_equation
317
algebra
easy
Solve for x: 5x + 19 = -1
-4
Subtract 19 from both sides: 5x = -1-19=-20. Then divide by 5: x = -20/5 = -4.
linear_equation
318
algebra
medium
Solve for x: x^2 + 17x + 70 = 0
x = -7, -10
Factor: (x - -7)(x - -10) = x^2 -(-17)x + 70 = 0. So x = -7 or -10. Check sum = -17, product = 70.
quadratic
319
algebra
easy
Solve for x: 1x - 5 = -10
-5
Add 5 to both sides: 1x = -10+5=-5. Then x = -5/1 = -5.
linear_equation
320
roots
easy
What is the square root of 4?
2
Find number that when squared gives 4. 2*2=4, so sqrt(4)=2.
square_roots
321
algebra
medium
Solve for x: x^2 + 11x + 18 = 0
x = -2, -9
Factor: (x - -2)(x - -9) = x^2 -(-11)x + 18 = 0. So x = -2 or -9. Check sum = -11, product = 18.
quadratic
322
algebra
easy
Solve for x: 14x + 17 = -165
-13
Subtract 17 from both sides: 14x = -165-17=-182. Then divide by 14: x = -182/14 = -13.
linear_equation
323
arithmetic
easy
What is 488 - 460?
28
Subtract: 488 - 460 = 28.
basic_operations
324
arithmetic
easy
What is 15222 / 59?
258
Divide: 15222 ÷ 59 = 258 because 59*258=15222.
division
325
exponents
easy
What is 9^2?
81
9^2 means multiply 9 by itself 2 times: 9*9 = 81.
exponents
326
arithmetic
easy
What is 868 - 491?
377
Subtract: 868 - 491 = 377.
basic_operations
327
statistics
easy
What is the mean (average) of 57, 10, 11, 42, 78?
39.6
Mean = sum/count. Sum = 57+10+11+42+78=198. Count=5. Mean=198/5=39.6.
mean
328
algebra
easy
Solve for x: 3x - 34 = -43
-3
Add 34 to both sides: 3x = -43+34=-9. Then x = -9/3 = -3.
linear_equation
329
roots
easy
What is the square root of 625?
25
Find number that when squared gives 625. 25*25=625, so sqrt(625)=25.
square_roots
330
exponents
easy
What is 9^5?
59049
9^5 means multiply 9 by itself 5 times: 9*9*9*9*9 = 59049.
exponents
331
arithmetic
easy
What is 5369 / 91?
59
Divide: 5369 ÷ 91 = 59 because 91*59=5369.
division
332
calculus
medium
What is the indefinite integral of x^4 dx?
x^5/5 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^4 = x^5/5 + C.
integral
333
percentages
easy
What is 53% of 348?
184.44
Calculate 53/100 * 348 = 0.53*348 = 184.44.
percentages
334
word_problems
easy
If you have 56 apples and you buy 27 more apples, how many apples do you have in total?
83
Add initial 56 plus bought 27: 56+27=83.
addition_word
335
roots
easy
What is the square root of 784?
28
Find number that when squared gives 784. 28*28=784, so sqrt(784)=28.
square_roots
336
roots
easy
What is the square root of 1849?
43
Find number that when squared gives 1849. 43*43=1849, so sqrt(1849)=43.
square_roots
337
geometry
easy
Find the area of a circle with radius 10. Use pi=3.14159, round to 2 decimals.
314.16
Area = pi*r^2 = 3.14159*10^2 = 3.14159*100 = 314.16.
circle_area
338
statistics
easy
What is the mean (average) of 12, 11, 12?
11.67
Mean = sum/count. Sum = 12+11+12=35. Count=3. Mean=35/3=11.67.
mean
339
calculus
medium
What is the indefinite integral of x^1 dx?
x^2/2 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^1 = x^2/2 + C.
integral
340
number_theory
medium
What is the GCD (greatest common divisor) of 17 and 72?
1
Find greatest number dividing both 17 and 72. Divisors common, greatest is 1.
gcd
341
roots
easy
What is the square root of 1849?
43
Find number that when squared gives 1849. 43*43=1849, so sqrt(1849)=43.
square_roots
342
arithmetic
easy
What is 9871 divided by 54? Give answer to 2 decimal places.
182.8
Calculate 9871/ 54 = 182.7963, rounded to 2 decimals is 182.8.
division
343
arithmetic
easy
What is 992 - 295?
697
Subtract: 992 - 295 = 697.
basic_operations
344
fractions
medium
What is 5/17 - 8/5? Give as simplified fraction.
-111/85
Common denominator 85. Numerator 25-136=-111. So -111/85 simplifies to -111/85.
fraction_operations
345
number_theory
medium
What is the LCM (least common multiple) of 15 and 98?
1470
LCM = |15*98| / GCD(15,98). GCD=1, so LCM=1470/1=1470.
lcm
346
percentages
easy
What is 55% of 866?
476.3
Calculate 55/100 * 866 = 0.55*866 = 476.3.
percentages
347
arithmetic
easy
What is 35 + 4 * 85? Remember order of operations.
375
Order of operations (PEMDAS): first 4*85=340, then 35+340=375.
basic_operations
348
exponents
easy
What is 7^4?
2401
7^4 means multiply 7 by itself 4 times: 7*7*7*7 = 2401.
exponents
349
arithmetic
easy
What is 85 + 52 * 19? Remember order of operations.
1073
Order of operations (PEMDAS): first 52*19=988, then 85+988=1073.
basic_operations
350
arithmetic
easy
What is 94 + 765?
859
Add the two numbers: 94 + 765 = 859.
basic_operations
351
word_problems
easy
If you have 48 dollars and you buy 11 more dollars, how many dollars do you have in total?
59
Add initial 48 plus bought 11: 48+11=59.
addition_word
352
exponents
easy
What is 7^2?
49
7^2 means multiply 7 by itself 2 times: 7*7 = 49.
exponents
353
arithmetic
easy
What is 7 + 87 * 97? Remember order of operations.
8446
Order of operations (PEMDAS): first 87*97=8439, then 7+8439=8446.
basic_operations
354
word_problems
easy
If you have 89 candies and you buy 28 more candies, how many candies do you have in total?
117
Add initial 89 plus bought 28: 89+28=117.
addition_word
355
word_problems
easy
If you have 58 books and you buy 18 more books, how many books do you have in total?
76
Add initial 58 plus bought 18: 58+18=76.
addition_word
356
arithmetic
easy
What is 10166 / 46?
221
Divide: 10166 ÷ 46 = 221 because 46*221=10166.
division
357
statistics
easy
What is the mean (average) of 86, 40, 6, 29, 51?
42.4
Mean = sum/count. Sum = 86+40+6+29+51=212. Count=5. Mean=212/5=42.4.
mean
358
arithmetic
easy
What is 8 + 210?
218
Add the two numbers: 8 + 210 = 218.
basic_operations
359
geometry
easy
Find the area of a circle with radius 21. Use pi=3.14159, round to 2 decimals.
1385.44
Area = pi*r^2 = 3.14159*21^2 = 3.14159*441 = 1385.44.
circle_area
360
arithmetic
easy
What is 510 / 2?
255
Divide: 510 ÷ 2 = 255 because 2*255=510.
division
361
algebra
easy
Solve for x: 13x + 18 = -60
-6
Subtract 18 from both sides: 13x = -60-18=-78. Then divide by 13: x = -78/13 = -6.
linear_equation
362
number_theory
medium
What is the GCD (greatest common divisor) of 10 and 51?
1
Find greatest number dividing both 10 and 51. Divisors common, greatest is 1.
gcd
363
calculus
medium
What is the indefinite integral of x^1 dx?
x^2/2 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^1 = x^2/2 + C.
integral
364
word_problems
easy
If you have 14 pencils and you buy 21 more pencils, how many pencils do you have in total?
35
Add initial 14 plus bought 21: 14+21=35.
addition_word
365
calculus
medium
What is the indefinite integral of x^5 dx?
x^6/6 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^5 = x^6/6 + C.
integral
366
calculus
medium
What is the derivative of 7x^7 with respect to x?
49x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^7] = 7*7*x^6 = 49x^6.
derivative
367
exponents
easy
What is 3^5?
243
3^5 means multiply 3 by itself 5 times: 3*3*3*3*3 = 243.
exponents
368
arithmetic
easy
What is 59 * 89?
5251
Multiply: 59 * 89 = 5251.
basic_operations
369
arithmetic
easy
What is 448 + 865?
1313
Add the two numbers: 448 + 865 = 1313.
basic_operations
370
calculus
medium
What is the derivative of 2x^6 with respect to x?
12x^5
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^6] = 2*6*x^5 = 12x^5.
derivative
371
calculus
medium
What is the derivative of 5x^8 with respect to x?
40x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [5x^8] = 5*8*x^7 = 40x^7.
derivative
372
roots
easy
What is the square root of 225?
15
Find number that when squared gives 225. 15*15=225, so sqrt(225)=15.
square_roots
373
roots
easy
What is the square root of 2500?
50
Find number that when squared gives 2500. 50*50=2500, so sqrt(2500)=50.
square_roots
374
algebra
medium
Solve for x: x^2 + 2x - 48 = 0
x = -8, 6
Factor: (x - -8)(x - 6) = x^2 -(-2)x + -48 = 0. So x = -8 or 6. Check sum = -2, product = -48.
quadratic
375
arithmetic
easy
What is 18078 / 69?
262
Divide: 18078 ÷ 69 = 262 because 69*262=18078.
division
376
number_theory
medium
What is the GCD (greatest common divisor) of 94 and 83?
1
Find greatest number dividing both 94 and 83. Divisors common, greatest is 1.
gcd
377
percentages
easy
What is 14% of 150?
21
Calculate 14/100 * 150 = 0.14*150 = 21.
percentages
378
geometry
easy
Find the perimeter of a rectangle with length 23 and width 78.
202
Perimeter = 2*(length+width) = 2*(23+78) = 2*101 = 202.
rectangle_perim
379
algebra
easy
Solve for x: 3x - 28 = 32
20
Add 28 to both sides: 3x = 32+28=60. Then x = 60/3 = 20.
linear_equation
380
statistics
easy
What is the mean (average) of 97, 73, 98, 75?
85.75
Mean = sum/count. Sum = 97+73+98+75=343. Count=4. Mean=343/4=85.75.
mean
381
word_problems
easy
If you have 92 pencils and you buy 37 more pencils, how many pencils do you have in total?
129
Add initial 92 plus bought 37: 92+37=129.
addition_word
382
roots
easy
What is the square root of 1681?
41
Find number that when squared gives 1681. 41*41=1681, so sqrt(1681)=41.
square_roots
383
roots
easy
What is the square root of 100?
10
Find number that when squared gives 100. 10*10=100, so sqrt(100)=10.
square_roots
384
word_problems
easy
If you have 13 candies and you buy 31 more candies, how many candies do you have in total?
44
Add initial 13 plus bought 31: 13+31=44.
addition_word
385
exponents
easy
What is 6^2?
36
6^2 means multiply 6 by itself 2 times: 6*6 = 36.
exponents
386
number_theory
medium
What is the LCM (least common multiple) of 65 and 10?
130
LCM = |65*10| / GCD(65,10). GCD=5, so LCM=650/5=130.
lcm
387
word_problems
easy
If you have 62 apples and you buy 3 more apples, how many apples do you have in total?
65
Add initial 62 plus bought 3: 62+3=65.
addition_word
388
number_theory
medium
What is the GCD (greatest common divisor) of 37 and 10?
1
Find greatest number dividing both 37 and 10. Divisors common, greatest is 1.
gcd
389
calculus
medium
What is the derivative of 10x^5 with respect to x?
50x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^5] = 10*5*x^4 = 50x^4.
derivative
390
arithmetic
easy
What is 25 * 42?
1050
Multiply: 25 * 42 = 1050.
basic_operations
391
algebra
easy
Solve for x: 2x + 7 = -21
-14
Subtract 7 from both sides: 2x = -21-7=-28. Then divide by 2: x = -28/2 = -14.
linear_equation
392
roots
easy
What is the square root of 2116?
46
Find number that when squared gives 2116. 46*46=2116, so sqrt(2116)=46.
square_roots
393
arithmetic
easy
What is 517 + 662 * 23? Remember order of operations.
15743
Order of operations (PEMDAS): first 662*23=15226, then 517+15226=15743.
basic_operations
394
word_problems
easy
If you have 61 pencils and you buy 34 more pencils, how many pencils do you have in total?
95
Add initial 61 plus bought 34: 61+34=95.
addition_word
395
algebra
medium
Solve for x: x^2 - 2x + 1 = 0
x = 1
Factor as (x - 1)^2 = 0, so root is 1 (double root). Sum of roots = 2, product = 1.
quadratic
396
exponents
easy
What is 8^5?
32768
8^5 means multiply 8 by itself 5 times: 8*8*8*8*8 = 32768.
exponents
397
roots
easy
What is the square root of 1936?
44
Find number that when squared gives 1936. 44*44=1936, so sqrt(1936)=44.
square_roots
398
arithmetic
easy
What is 809 + 647 * 83? Remember order of operations.
54510
Order of operations (PEMDAS): first 647*83=53701, then 809+53701=54510.
basic_operations
399
arithmetic
easy
What is 25404 / 73?
348
Divide: 25404 ÷ 73 = 348 because 73*348=25404.
division
400
geometry
easy
Find the area of a triangle with base 20 and height 43.
430
Area = 0.5*base*height = 0.5*20*43 = 430.
triangle_area