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
2,001
arithmetic
easy
What is 2263 / 73?
31
Divide: 2263 ÷ 73 = 31 because 73*31=2263.
division
2,002
percentages
easy
What is 61% of 931?
567.91
Calculate 61/100 * 931 = 0.61*931 = 567.91.
percentages
2,003
number_theory
medium
What is the GCD (greatest common divisor) of 78 and 86?
2
Find greatest number dividing both 78 and 86. Divisors common, greatest is 2.
gcd
2,004
arithmetic
easy
What is 517 - 260?
257
Subtract: 517 - 260 = 257.
basic_operations
2,005
calculus
medium
What is the derivative of 6x^7 with respect to x?
42x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^7] = 6*7*x^6 = 42x^6.
derivative
2,006
algebra
easy
Solve for x: 18x - 45 = 261
17
Add 45 to both sides: 18x = 261+45=306. Then x = 306/18 = 17.
linear_equation
2,007
algebra
medium
Solve for x: x^2 + 7x + 10 = 0
x = -2, -5
Factor: (x - -2)(x - -5) = x^2 -(-7)x + 10 = 0. So x = -2 or -5. Check sum = -7, product = 10.
quadratic
2,008
statistics
easy
What is the mean (average) of 60, 17, 12, 41?
32.5
Mean = sum/count. Sum = 60+17+12+41=130. Count=4. Mean=130/4=32.5.
mean
2,009
calculus
medium
What is the indefinite integral of x^2 dx?
x^3/3 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^2 = x^3/3 + C.
integral
2,010
geometry
easy
Find the area of a rectangle with length 41 and width 6.
246
Area = length * width = 41*6 = 246.
rectangle_area
2,011
algebra
easy
Solve for x: 16x - 15 = 33
3
Add 15 to both sides: 16x = 33+15=48. Then x = 48/16 = 3.
linear_equation
2,012
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
2,013
geometry
easy
Find the area of a triangle with base 98 and height 34.
1666
Area = 0.5*base*height = 0.5*98*34 = 1666.
triangle_area
2,014
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
2,015
algebra
medium
Solve for x: x^2 - 5x = 0
x = 0, 5
Factor: (x - 0)(x - 5) = x^2 -(5)x + 0 = 0. So x = 0 or 5. Check sum = 5, product = 0.
quadratic
2,016
algebra
easy
Solve for x: 18x + 34 = 394
20
Subtract 34 from both sides: 18x = 394-34=360. Then divide by 18: x = 360/18 = 20.
linear_equation
2,017
word_problems
easy
If you have 11 books and you buy 13 more books, how many books do you have in total?
24
Add initial 11 plus bought 13: 11+13=24.
addition_word
2,018
arithmetic
easy
What is 236 + 188 * 5? Remember order of operations.
1176
Order of operations (PEMDAS): first 188*5=940, then 236+940=1176.
basic_operations
2,019
word_problems
easy
If you have 60 candies and you buy 8 more candies, how many candies do you have in total?
68
Add initial 60 plus bought 8: 60+8=68.
addition_word
2,020
arithmetic
easy
What is 63 * 59?
3717
Multiply: 63 * 59 = 3717.
basic_operations
2,021
algebra
easy
Solve for x: 4x - 6 = -66
-15
Add 6 to both sides: 4x = -66+6=-60. Then x = -60/4 = -15.
linear_equation
2,022
fractions
medium
What is 10/7 - 6/18? Give as simplified fraction.
23/21
Common denominator 126. Numerator 180-42=138. So 138/126 simplifies to 23/21.
fraction_operations
2,023
fractions
medium
What is 19/2 + 17/20? Give as simplified fraction.
207/20
Common denominator 2*20=40. 19/2=380/40, 17/20=34/40. Sum = 414/40 = 207/20 simplified.
fraction_operations
2,024
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
2,025
percentages
easy
What is 99% of 511?
505.89
Calculate 99/100 * 511 = 0.99*511 = 505.89.
percentages
2,026
arithmetic
easy
What is 616 / 44?
14
Divide: 616 ÷ 44 = 14 because 44*14=616.
division
2,027
calculus
medium
What is the derivative of 10x^4 with respect to x?
40x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^4] = 10*4*x^3 = 40x^3.
derivative
2,028
arithmetic
easy
What is 3397 / 43?
79
Divide: 3397 ÷ 43 = 79 because 43*79=3397.
division
2,029
word_problems
easy
If you have 95 candies and you buy 43 more candies, how many candies do you have in total?
138
Add initial 95 plus bought 43: 95+43=138.
addition_word
2,030
word_problems
easy
If you have 85 pencils and you buy 18 more pencils, how many pencils do you have in total?
103
Add initial 85 plus bought 18: 85+18=103.
addition_word
2,031
arithmetic
easy
What is 80 * 58?
4640
Multiply: 80 * 58 = 4640.
basic_operations
2,032
algebra
easy
Solve for x: 7x - 44 = -58
-2
Add 44 to both sides: 7x = -58+44=-14. Then x = -14/7 = -2.
linear_equation
2,033
roots
easy
What is the square root of 16?
4
Find number that when squared gives 16. 4*4=16, so sqrt(16)=4.
square_roots
2,034
arithmetic
easy
What is 975 + 561 * 78? Remember order of operations.
44733
Order of operations (PEMDAS): first 561*78=43758, then 975+43758=44733.
basic_operations
2,035
geometry
easy
Find the perimeter of a rectangle with length 31 and width 99.
260
Perimeter = 2*(length+width) = 2*(31+99) = 2*130 = 260.
rectangle_perim
2,036
calculus
medium
What is the derivative of 1x^2 with respect to x?
2x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^2] = 1*2*x^1 = 2x.
derivative
2,037
fractions
medium
What is 6/14 * 13/11? Give as simplified fraction.
39/77
Multiply numerators: 6*13=78. Denominators: 14*11=154. Simplify by gcd 2 to get 39/77.
fraction_operations
2,038
algebra
easy
Solve for x: 4x - 12 = 32
11
Add 12 to both sides: 4x = 32+12=44. Then x = 44/4 = 11.
linear_equation
2,039
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
2,040
exponents
easy
What is 12^3?
1728
12^3 means multiply 12 by itself 3 times: 12*12*12 = 1728.
exponents
2,041
number_theory
medium
What is the LCM (least common multiple) of 86 and 13?
1118
LCM = |86*13| / GCD(86,13). GCD=1, so LCM=1118/1=1118.
lcm
2,042
fractions
medium
What is 16/16 - 13/17? Give as simplified fraction.
4/17
Common denominator 272. Numerator 272-208=64. So 64/272 simplifies to 4/17.
fraction_operations
2,043
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
2,044
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
2,045
number_theory
medium
What is the LCM (least common multiple) of 79 and 24?
1896
LCM = |79*24| / GCD(79,24). GCD=1, so LCM=1896/1=1896.
lcm
2,046
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
2,047
arithmetic
easy
What is 29 * 83?
2407
Multiply: 29 * 83 = 2407.
basic_operations
2,048
algebra
easy
Solve for x: 16x + 17 = 337
20
Subtract 17 from both sides: 16x = 337-17=320. Then divide by 16: x = 320/16 = 20.
linear_equation
2,049
arithmetic
easy
What is 298 + 480?
778
Add the two numbers: 298 + 480 = 778.
basic_operations
2,050
statistics
easy
What is the mean (average) of 20, 17, 88, 39?
41
Mean = sum/count. Sum = 20+17+88+39=164. Count=4. Mean=164/4=41.0.
mean
2,051
percentages
easy
What is 67% of 438?
293.46
Calculate 67/100 * 438 = 0.67*438 = 293.46.
percentages
2,052
exponents
easy
What is 11^2?
121
11^2 means multiply 11 by itself 2 times: 11*11 = 121.
exponents
2,053
arithmetic
easy
What is 940 + 47?
987
Add the two numbers: 940 + 47 = 987.
basic_operations
2,054
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
2,055
word_problems
easy
If you have 89 pencils and you buy 47 more pencils, how many pencils do you have in total?
136
Add initial 89 plus bought 47: 89+47=136.
addition_word
2,056
geometry
easy
Find the area of a circle with radius 17. Use pi=3.14159, round to 2 decimals.
907.92
Area = pi*r^2 = 3.14159*17^2 = 3.14159*289 = 907.92.
circle_area
2,057
arithmetic
easy
What is 788 + 516?
1304
Add the two numbers: 788 + 516 = 1304.
basic_operations
2,058
word_problems
easy
If you have 27 candies and you buy 12 more candies, how many candies do you have in total?
39
Add initial 27 plus bought 12: 27+12=39.
addition_word
2,059
arithmetic
easy
What is 427 - 86?
341
Subtract: 427 - 86 = 341.
basic_operations
2,060
word_problems
easy
If you have 90 pencils and you buy 29 more pencils, how many pencils do you have in total?
119
Add initial 90 plus bought 29: 90+29=119.
addition_word
2,061
geometry
easy
Find the area of a circle with radius 12. Use pi=3.14159, round to 2 decimals.
452.39
Area = pi*r^2 = 3.14159*12^2 = 3.14159*144 = 452.39.
circle_area
2,062
fractions
medium
What is 6/4 * 20/10? Give as simplified fraction.
3
Multiply numerators: 6*20=120. Denominators: 4*10=40. Simplify by gcd 40 to get 3.
fraction_operations
2,063
arithmetic
easy
What is 15618 / 57?
274
Divide: 15618 ÷ 57 = 274 because 57*274=15618.
division
2,064
calculus
medium
What is the derivative of 1x^2 with respect to x?
2x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^2] = 1*2*x^1 = 2x.
derivative
2,065
algebra
medium
Solve for x: x^2 - 15x + 50 = 0
x = 10, 5
Factor: (x - 10)(x - 5) = x^2 -(15)x + 50 = 0. So x = 10 or 5. Check sum = 15, product = 50.
quadratic
2,066
word_problems
easy
If you have 93 pencils and you buy 26 more pencils, how many pencils do you have in total?
119
Add initial 93 plus bought 26: 93+26=119.
addition_word
2,067
statistics
easy
What is the mean (average) of 80, 79, 47, 89?
73.75
Mean = sum/count. Sum = 80+79+47+89=295. Count=4. Mean=295/4=73.75.
mean
2,068
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
2,069
arithmetic
easy
What is 129 + 139 * 2? Remember order of operations.
407
Order of operations (PEMDAS): first 139*2=278, then 129+278=407.
basic_operations
2,070
arithmetic
easy
What is 713 + 994 * 25? Remember order of operations.
25563
Order of operations (PEMDAS): first 994*25=24850, then 713+24850=25563.
basic_operations
2,071
algebra
easy
Solve for x: 8x + 5 = 165
20
Subtract 5 from both sides: 8x = 165-5=160. Then divide by 8: x = 160/8 = 20.
linear_equation
2,072
fractions
medium
What is 3/11 - 15/6? Give as simplified fraction.
-49/22
Common denominator 66. Numerator 18-165=-147. So -147/66 simplifies to -49/22.
fraction_operations
2,073
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
2,074
arithmetic
easy
What is 10654 divided by 23? Give answer to 2 decimal places.
463.22
Calculate 10654/ 23 = 463.2174, rounded to 2 decimals is 463.22.
division
2,075
statistics
easy
What is the mean (average) of 3, 58, 75, 32?
42
Mean = sum/count. Sum = 3+58+75+32=168. Count=4. Mean=168/4=42.0.
mean
2,076
fractions
medium
What is 10/20 - 13/3? Give as simplified fraction.
-23/6
Common denominator 60. Numerator 30-260=-230. So -230/60 simplifies to -23/6.
fraction_operations
2,077
arithmetic
easy
What is 646 - 106?
540
Subtract: 646 - 106 = 540.
basic_operations
2,078
statistics
easy
What is the mean (average) of 75, 77, 94, 71, 38?
71
Mean = sum/count. Sum = 75+77+94+71+38=355. Count=5. Mean=355/5=71.0.
mean
2,079
arithmetic
easy
What is 76 * 93?
7068
Multiply: 76 * 93 = 7068.
basic_operations
2,080
statistics
easy
What is the mean (average) of 92, 8, 68?
56
Mean = sum/count. Sum = 92+8+68=168. Count=3. Mean=168/3=56.0.
mean
2,081
arithmetic
easy
What is 9 * 35?
315
Multiply: 9 * 35 = 315.
basic_operations
2,082
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
2,083
arithmetic
easy
What is 20780 divided by 65? Give answer to 2 decimal places.
319.69
Calculate 20780/ 65 = 319.6923, rounded to 2 decimals is 319.69.
division
2,084
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
2,085
algebra
medium
Solve for x: x^2 + 5x + 4 = 0
x = -1, -4
Factor: (x - -1)(x - -4) = x^2 -(-5)x + 4 = 0. So x = -1 or -4. Check sum = -5, product = 4.
quadratic
2,086
statistics
easy
What is the mean (average) of 57, 30, 65, 29?
45.25
Mean = sum/count. Sum = 57+30+65+29=181. Count=4. Mean=181/4=45.25.
mean
2,087
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
2,088
word_problems
easy
If you have 21 candies and you buy 19 more candies, how many candies do you have in total?
40
Add initial 21 plus bought 19: 21+19=40.
addition_word
2,089
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
2,090
number_theory
medium
What is the GCD (greatest common divisor) of 61 and 21?
1
Find greatest number dividing both 61 and 21. Divisors common, greatest is 1.
gcd
2,091
exponents
easy
What is 3^5?
243
3^5 means multiply 3 by itself 5 times: 3*3*3*3*3 = 243.
exponents
2,092
algebra
easy
Solve for x: 6x - 25 = -85
-10
Add 25 to both sides: 6x = -85+25=-60. Then x = -60/6 = -10.
linear_equation
2,093
statistics
easy
What is the mean (average) of 54, 64, 39?
52.33
Mean = sum/count. Sum = 54+64+39=157. Count=3. Mean=157/3=52.33.
mean
2,094
percentages
easy
What is 27% of 571?
154.17
Calculate 27/100 * 571 = 0.27*571 = 154.17.
percentages
2,095
arithmetic
easy
What is 368 - 19?
349
Subtract: 368 - 19 = 349.
basic_operations
2,096
algebra
medium
Solve for x: x^2 + 3x - 54 = 0
x = 6, -9
Factor: (x - 6)(x - -9) = x^2 -(-3)x + -54 = 0. So x = 6 or -9. Check sum = -3, product = -54.
quadratic
2,097
arithmetic
easy
What is 30 * 16?
480
Multiply: 30 * 16 = 480.
basic_operations
2,098
statistics
easy
What is the mean (average) of 44, 46, 99, 6?
48.75
Mean = sum/count. Sum = 44+46+99+6=195. Count=4. Mean=195/4=48.75.
mean
2,099
geometry
easy
Find the perimeter of a rectangle with length 89 and width 66.
310
Perimeter = 2*(length+width) = 2*(89+66) = 2*155 = 310.
rectangle_perim
2,100
arithmetic
easy
What is 2449 divided by 92? Give answer to 2 decimal places.
26.62
Calculate 2449/ 92 = 26.6196, rounded to 2 decimals is 26.62.
division