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
734,401
fractions
medium
What is 10/16 + 9/15? Give as simplified fraction.
49/40
Common denominator 16*15=240. 10/16=150/240, 9/15=144/240. Sum = 294/240 = 49/40 simplified.
fraction_operations
734,402
fractions
medium
What is 3/17 + 9/14? Give as simplified fraction.
195/238
Common denominator 17*14=238. 3/17=42/238, 9/14=153/238. Sum = 195/238 = 195/238 simplified.
fraction_operations
734,403
geometry
easy
Find the circumference of a circle with radius 25. Use pi=3.14159, round to 2 decimals.
157.08
Circumference = 2*pi*r = 2*3.14159*25 = 157.08.
circle_circum
734,404
calculus
medium
What is the indefinite integral of x^3 dx?
x^4/4 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^3 = x^4/4 + C.
integral
734,405
arithmetic
easy
What is 70 * 1?
70
Multiply: 70 * 1 = 70.
basic_operations
734,406
arithmetic
easy
What is 14 + 4 * 40? Remember order of operations.
174
Order of operations (PEMDAS): first 4*40=160, then 14+160=174.
basic_operations
734,407
word_problems
easy
If you have 54 candies and you buy 45 more candies, how many candies do you have in total?
99
Add initial 54 plus bought 45: 54+45=99.
addition_word
734,408
statistics
easy
What is the mean (average) of 22, 48, 81?
50.33
Mean = sum/count. Sum = 22+48+81=151. Count=3. Mean=151/3=50.33.
mean
734,409
fractions
medium
What is 14/10 * 6/11? Give as simplified fraction.
42/55
Multiply numerators: 14*6=84. Denominators: 10*11=110. Simplify by gcd 2 to get 42/55.
fraction_operations
734,410
roots
easy
What is the square root of 2304?
48
Find number that when squared gives 2304. 48*48=2304, so sqrt(2304)=48.
square_roots
734,411
word_problems
easy
If you have 27 candies and you buy 21 more candies, how many candies do you have in total?
48
Add initial 27 plus bought 21: 27+21=48.
addition_word
734,412
algebra
medium
Solve for x: x^2 - 4x - 21 = 0
x = 7, -3
Factor: (x - 7)(x - -3) = x^2 -(4)x + -21 = 0. So x = 7 or -3. Check sum = 4, product = -21.
quadratic
734,413
arithmetic
easy
What is 43898 / 94?
467
Divide: 43898 ÷ 94 = 467 because 94*467=43898.
division
734,414
word_problems
easy
If you have 59 apples and you buy 3 more apples, how many apples do you have in total?
62
Add initial 59 plus bought 3: 59+3=62.
addition_word
734,415
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
734,416
arithmetic
easy
What is 798 - 142?
656
Subtract: 798 - 142 = 656.
basic_operations
734,417
fractions
medium
What is 10/11 * 20/19? Give as simplified fraction.
200/209
Multiply numerators: 10*20=200. Denominators: 11*19=209. Simplify by gcd 1 to get 200/209.
fraction_operations
734,418
number_theory
medium
What is the GCD (greatest common divisor) of 93 and 95?
1
Find greatest number dividing both 93 and 95. Divisors common, greatest is 1.
gcd
734,419
calculus
medium
What is the indefinite integral of x^6 dx?
x^7/7 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^6 = x^7/7 + C.
integral
734,420
roots
easy
What is the square root of 196?
14
Find number that when squared gives 196. 14*14=196, so sqrt(196)=14.
square_roots
734,421
statistics
easy
What is the mean (average) of 43, 74, 31?
49.33
Mean = sum/count. Sum = 43+74+31=148. Count=3. Mean=148/3=49.33.
mean
734,422
arithmetic
easy
What is 51 + 87 * 81? Remember order of operations.
7098
Order of operations (PEMDAS): first 87*81=7047, then 51+7047=7098.
basic_operations
734,423
algebra
easy
Solve for x: 18x - 37 = 179
12
Add 37 to both sides: 18x = 179+37=216. Then x = 216/18 = 12.
linear_equation
734,424
exponents
easy
What is 4^4?
256
4^4 means multiply 4 by itself 4 times: 4*4*4*4 = 256.
exponents
734,425
number_theory
medium
What is the GCD (greatest common divisor) of 92 and 58?
2
Find greatest number dividing both 92 and 58. Divisors common, greatest is 2.
gcd
734,426
arithmetic
easy
What is 1440 / 30?
48
Divide: 1440 ÷ 30 = 48 because 30*48=1440.
division
734,427
algebra
medium
Solve for x: x^2 + 1x = 0
x = -1, 0
Factor: (x - -1)(x - 0) = x^2 -(-1)x + 0 = 0. So x = -1 or 0. Check sum = -1, product = 0.
quadratic
734,428
percentages
easy
What is 29% of 187?
54.23
Calculate 29/100 * 187 = 0.29*187 = 54.23.
percentages
734,429
calculus
medium
What is the derivative of 3x^7 with respect to x?
21x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^7] = 3*7*x^6 = 21x^6.
derivative
734,430
arithmetic
easy
What is 349 + 411 * 57? Remember order of operations.
23776
Order of operations (PEMDAS): first 411*57=23427, then 349+23427=23776.
basic_operations
734,431
roots
easy
What is the square root of 9?
3
Find number that when squared gives 9. 3*3=9, so sqrt(9)=3.
square_roots
734,432
algebra
medium
Solve for x: x^2 + 2x - 15 = 0
x = 3, -5
Factor: (x - 3)(x - -5) = x^2 -(-2)x + -15 = 0. So x = 3 or -5. Check sum = -2, product = -15.
quadratic
734,433
arithmetic
easy
What is 888 + 900?
1788
Add the two numbers: 888 + 900 = 1788.
basic_operations
734,434
number_theory
medium
What is the LCM (least common multiple) of 21 and 81?
567
LCM = |21*81| / GCD(21,81). GCD=3, so LCM=1701/3=567.
lcm
734,435
percentages
easy
What is 66% of 420?
277.2
Calculate 66/100 * 420 = 0.66*420 = 277.2.
percentages
734,436
percentages
easy
What is 4% of 831?
33.24
Calculate 4/100 * 831 = 0.04*831 = 33.24.
percentages
734,437
algebra
medium
Solve for x: x^2 + 16x + 60 = 0
x = -6, -10
Factor: (x - -6)(x - -10) = x^2 -(-16)x + 60 = 0. So x = -6 or -10. Check sum = -16, product = 60.
quadratic
734,438
roots
easy
What is the square root of 144?
12
Find number that when squared gives 144. 12*12=144, so sqrt(144)=12.
square_roots
734,439
arithmetic
easy
What is 242 - 19?
223
Subtract: 242 - 19 = 223.
basic_operations
734,440
algebra
medium
Solve for x: x^2 + 9x + 14 = 0
x = -2, -7
Factor: (x - -2)(x - -7) = x^2 -(-9)x + 14 = 0. So x = -2 or -7. Check sum = -9, product = 14.
quadratic
734,441
calculus
medium
What is the indefinite integral of x^6 dx?
x^7/7 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^6 = x^7/7 + C.
integral
734,442
arithmetic
easy
What is 23 * 2?
46
Multiply: 23 * 2 = 46.
basic_operations
734,443
arithmetic
easy
What is 15246 / 66?
231
Divide: 15246 ÷ 66 = 231 because 66*231=15246.
division
734,444
algebra
easy
Solve for x: 17x - 10 = -163
-9
Add 10 to both sides: 17x = -163+10=-153. Then x = -153/17 = -9.
linear_equation
734,445
calculus
medium
What is the derivative of 9x^4 with respect to x?
36x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^4] = 9*4*x^3 = 36x^3.
derivative
734,446
statistics
easy
What is the mean (average) of 30, 38, 34, 17, 68?
37.4
Mean = sum/count. Sum = 30+38+34+17+68=187. Count=5. Mean=187/5=37.4.
mean
734,447
arithmetic
easy
What is 801 - 1?
800
Subtract: 801 - 1 = 800.
basic_operations
734,448
percentages
easy
What is 14% of 466?
65.24
Calculate 14/100 * 466 = 0.14*466 = 65.24.
percentages
734,449
word_problems
easy
If you have 52 dollars and you buy 45 more dollars, how many dollars do you have in total?
97
Add initial 52 plus bought 45: 52+45=97.
addition_word
734,450
word_problems
easy
If you have 10 pencils and you buy 4 more pencils, how many pencils do you have in total?
14
Add initial 10 plus bought 4: 10+4=14.
addition_word
734,451
number_theory
medium
What is the GCD (greatest common divisor) of 71 and 54?
1
Find greatest number dividing both 71 and 54. Divisors common, greatest is 1.
gcd
734,452
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
734,453
calculus
medium
What is the indefinite integral of x^7 dx?
x^8/8 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^7 = x^8/8 + C.
integral
734,454
algebra
medium
Solve for x: x^2 - 10x + 9 = 0
x = 9, 1
Factor: (x - 9)(x - 1) = x^2 -(10)x + 9 = 0. So x = 9 or 1. Check sum = 10, product = 9.
quadratic
734,455
algebra
easy
Solve for x: 2x - 27 = -13
7
Add 27 to both sides: 2x = -13+27=14. Then x = 14/2 = 7.
linear_equation
734,456
arithmetic
easy
What is 14508 / 39?
372
Divide: 14508 ÷ 39 = 372 because 39*372=14508.
division
734,457
arithmetic
easy
What is 734 - 269?
465
Subtract: 734 - 269 = 465.
basic_operations
734,458
arithmetic
easy
What is 823 + 510 * 14? Remember order of operations.
7963
Order of operations (PEMDAS): first 510*14=7140, then 823+7140=7963.
basic_operations
734,459
geometry
easy
Find the perimeter of a rectangle with length 82 and width 60.
284
Perimeter = 2*(length+width) = 2*(82+60) = 2*142 = 284.
rectangle_perim
734,460
number_theory
medium
What is the GCD (greatest common divisor) of 15 and 51?
3
Find greatest number dividing both 15 and 51. Divisors common, greatest is 3.
gcd
734,461
geometry
easy
Find the area of a circle with radius 19. Use pi=3.14159, round to 2 decimals.
1134.11
Area = pi*r^2 = 3.14159*19^2 = 3.14159*361 = 1134.11.
circle_area
734,462
exponents
easy
What is 12^5?
248832
12^5 means multiply 12 by itself 5 times: 12*12*12*12*12 = 248832.
exponents
734,463
arithmetic
easy
What is 18 * 98?
1764
Multiply: 18 * 98 = 1764.
basic_operations
734,464
arithmetic
easy
What is 57 * 14?
798
Multiply: 57 * 14 = 798.
basic_operations
734,465
fractions
medium
What is 15/13 * 9/9? Give as simplified fraction.
15/13
Multiply numerators: 15*9=135. Denominators: 13*9=117. Simplify by gcd 9 to get 15/13.
fraction_operations
734,466
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
734,467
number_theory
medium
What is the LCM (least common multiple) of 14 and 92?
644
LCM = |14*92| / GCD(14,92). GCD=2, so LCM=1288/2=644.
lcm
734,468
geometry
easy
Find the area of a circle with radius 20. Use pi=3.14159, round to 2 decimals.
1256.64
Area = pi*r^2 = 3.14159*20^2 = 3.14159*400 = 1256.64.
circle_area
734,469
exponents
easy
What is 10^4?
10000
10^4 means multiply 10 by itself 4 times: 10*10*10*10 = 10000.
exponents
734,470
roots
easy
What is the square root of 1521?
39
Find number that when squared gives 1521. 39*39=1521, so sqrt(1521)=39.
square_roots
734,471
exponents
easy
What is 10^5?
100000
10^5 means multiply 10 by itself 5 times: 10*10*10*10*10 = 100000.
exponents
734,472
word_problems
easy
If you have 81 dollars and you buy 19 more dollars, how many dollars do you have in total?
100
Add initial 81 plus bought 19: 81+19=100.
addition_word
734,473
arithmetic
easy
What is 255 + 46?
301
Add the two numbers: 255 + 46 = 301.
basic_operations
734,474
arithmetic
easy
What is 406 + 566?
972
Add the two numbers: 406 + 566 = 972.
basic_operations
734,475
arithmetic
easy
What is 873 + 926 * 10? Remember order of operations.
10133
Order of operations (PEMDAS): first 926*10=9260, then 873+9260=10133.
basic_operations
734,476
arithmetic
easy
What is 668 + 286 * 43? Remember order of operations.
12966
Order of operations (PEMDAS): first 286*43=12298, then 668+12298=12966.
basic_operations
734,477
arithmetic
easy
What is 69 * 59?
4071
Multiply: 69 * 59 = 4071.
basic_operations
734,478
algebra
medium
Solve for x: x^2 + 10x + 24 = 0
x = -6, -4
Factor: (x - -6)(x - -4) = x^2 -(-10)x + 24 = 0. So x = -6 or -4. Check sum = -10, product = 24.
quadratic
734,479
statistics
easy
What is the mean (average) of 70, 28, 44, 40, 18?
40
Mean = sum/count. Sum = 70+28+44+40+18=200. Count=5. Mean=200/5=40.0.
mean
734,480
arithmetic
easy
What is 556 - 95?
461
Subtract: 556 - 95 = 461.
basic_operations
734,481
percentages
easy
What is 38% of 709?
269.42
Calculate 38/100 * 709 = 0.38*709 = 269.42.
percentages
734,482
arithmetic
easy
What is 919 - 577?
342
Subtract: 919 - 577 = 342.
basic_operations
734,483
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
734,484
fractions
medium
What is 9/16 * 4/19? Give as simplified fraction.
9/76
Multiply numerators: 9*4=36. Denominators: 16*19=304. Simplify by gcd 4 to get 9/76.
fraction_operations
734,485
fractions
medium
What is 8/16 * 11/14? Give as simplified fraction.
11/28
Multiply numerators: 8*11=88. Denominators: 16*14=224. Simplify by gcd 8 to get 11/28.
fraction_operations
734,486
algebra
easy
Solve for x: 14x + 21 = -189
-15
Subtract 21 from both sides: 14x = -189-21=-210. Then divide by 14: x = -210/14 = -15.
linear_equation
734,487
arithmetic
easy
What is 552 + 233?
785
Add the two numbers: 552 + 233 = 785.
basic_operations
734,488
geometry
easy
Find the area of a triangle with base 7 and height 81.
283.5
Area = 0.5*base*height = 0.5*7*81 = 283.5.
triangle_area
734,489
statistics
easy
What is the mean (average) of 79, 96, 42, 72?
72.25
Mean = sum/count. Sum = 79+96+42+72=289. Count=4. Mean=289/4=72.25.
mean
734,490
arithmetic
easy
What is 722 - 75?
647
Subtract: 722 - 75 = 647.
basic_operations
734,491
percentages
easy
What is 19% of 118?
22.42
Calculate 19/100 * 118 = 0.19*118 = 22.42.
percentages
734,492
word_problems
easy
If you have 35 apples and you buy 38 more apples, how many apples do you have in total?
73
Add initial 35 plus bought 38: 35+38=73.
addition_word
734,493
word_problems
easy
If you have 49 apples and you buy 2 more apples, how many apples do you have in total?
51
Add initial 49 plus bought 2: 49+2=51.
addition_word
734,494
statistics
easy
What is the mean (average) of 38, 71, 33?
47.33
Mean = sum/count. Sum = 38+71+33=142. Count=3. Mean=142/3=47.33.
mean
734,495
arithmetic
easy
What is 679 - 556?
123
Subtract: 679 - 556 = 123.
basic_operations
734,496
exponents
easy
What is 4^3?
64
4^3 means multiply 4 by itself 3 times: 4*4*4 = 64.
exponents
734,497
exponents
easy
What is 8^5?
32768
8^5 means multiply 8 by itself 5 times: 8*8*8*8*8 = 32768.
exponents
734,498
arithmetic
easy
What is 61 + 22 * 87? Remember order of operations.
1975
Order of operations (PEMDAS): first 22*87=1914, then 61+1914=1975.
basic_operations
734,499
arithmetic
easy
What is 772 - 440?
332
Subtract: 772 - 440 = 332.
basic_operations
734,500
arithmetic
easy
What is 327 + 347?
674
Add the two numbers: 327 + 347 = 674.
basic_operations