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
734,801
number_theory
medium
What is the LCM (least common multiple) of 26 and 36?
468
LCM = |26*36| / GCD(26,36). GCD=2, so LCM=936/2=468.
lcm
734,802
percentages
easy
What is 72% of 103?
74.16
Calculate 72/100 * 103 = 0.72*103 = 74.16.
percentages
734,803
word_problems
easy
If you have 82 apples and you buy 2 more apples, how many apples do you have in total?
84
Add initial 82 plus bought 2: 82+2=84.
addition_word
734,804
arithmetic
easy
What is 734 + 72?
806
Add the two numbers: 734 + 72 = 806.
basic_operations
734,805
roots
easy
What is the square root of 256?
16
Find number that when squared gives 256. 16*16=256, so sqrt(256)=16.
square_roots
734,806
arithmetic
easy
What is 919 - 819?
100
Subtract: 919 - 819 = 100.
basic_operations
734,807
percentages
easy
What is 52% of 279?
145.08
Calculate 52/100 * 279 = 0.52*279 = 145.08.
percentages
734,808
number_theory
medium
What is the GCD (greatest common divisor) of 31 and 87?
1
Find greatest number dividing both 31 and 87. Divisors common, greatest is 1.
gcd
734,809
number_theory
medium
What is the LCM (least common multiple) of 15 and 19?
285
LCM = |15*19| / GCD(15,19). GCD=1, so LCM=285/1=285.
lcm
734,810
roots
easy
What is the square root of 484?
22
Find number that when squared gives 484. 22*22=484, so sqrt(484)=22.
square_roots
734,811
calculus
medium
What is the derivative of 10x^7 with respect to x?
70x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^7] = 10*7*x^6 = 70x^6.
derivative
734,812
word_problems
easy
If you have 42 dollars and you buy 36 more dollars, how many dollars do you have in total?
78
Add initial 42 plus bought 36: 42+36=78.
addition_word
734,813
number_theory
medium
What is the LCM (least common multiple) of 90 and 21?
630
LCM = |90*21| / GCD(90,21). GCD=3, so LCM=1890/3=630.
lcm
734,814
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
734,815
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
734,816
exponents
easy
What is 9^3?
729
9^3 means multiply 9 by itself 3 times: 9*9*9 = 729.
exponents
734,817
arithmetic
easy
What is 3840 divided by 14? Give answer to 2 decimal places.
274.29
Calculate 3840/ 14 = 274.2857, rounded to 2 decimals is 274.29.
division
734,818
statistics
easy
What is the mean (average) of 21, 81, 20, 76?
49.5
Mean = sum/count. Sum = 21+81+20+76=198. Count=4. Mean=198/4=49.5.
mean
734,819
arithmetic
easy
What is 283 - 194?
89
Subtract: 283 - 194 = 89.
basic_operations
734,820
word_problems
easy
If you have 79 dollars and you buy 1 more dollars, how many dollars do you have in total?
80
Add initial 79 plus bought 1: 79+1=80.
addition_word
734,821
statistics
easy
What is the mean (average) of 80, 25, 92?
65.67
Mean = sum/count. Sum = 80+25+92=197. Count=3. Mean=197/3=65.67.
mean
734,822
number_theory
medium
What is the GCD (greatest common divisor) of 5 and 83?
1
Find greatest number dividing both 5 and 83. Divisors common, greatest is 1.
gcd
734,823
algebra
medium
Solve for x: x^2 - 8x + 12 = 0
x = 6, 2
Factor: (x - 6)(x - 2) = x^2 -(8)x + 12 = 0. So x = 6 or 2. Check sum = 8, product = 12.
quadratic
734,824
number_theory
medium
What is the LCM (least common multiple) of 49 and 45?
2205
LCM = |49*45| / GCD(49,45). GCD=1, so LCM=2205/1=2205.
lcm
734,825
arithmetic
easy
What is 9825 / 25?
393
Divide: 9825 ÷ 25 = 393 because 25*393=9825.
division
734,826
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
734,827
word_problems
easy
If you have 37 apples and you buy 4 more apples, how many apples do you have in total?
41
Add initial 37 plus bought 4: 37+4=41.
addition_word
734,828
word_problems
easy
If you have 72 pencils and you buy 33 more pencils, how many pencils do you have in total?
105
Add initial 72 plus bought 33: 72+33=105.
addition_word
734,829
algebra
medium
Solve for x: x^2 + 1x - 56 = 0
x = -8, 7
Factor: (x - -8)(x - 7) = x^2 -(-1)x + -56 = 0. So x = -8 or 7. Check sum = -1, product = -56.
quadratic
734,830
arithmetic
easy
What is 64 * 8?
512
Multiply: 64 * 8 = 512.
basic_operations
734,831
algebra
easy
Solve for x: 4x - 41 = -25
4
Add 41 to both sides: 4x = -25+41=16. Then x = 16/4 = 4.
linear_equation
734,832
fractions
medium
What is 3/12 - 13/3? Give as simplified fraction.
-49/12
Common denominator 36. Numerator 9-156=-147. So -147/36 simplifies to -49/12.
fraction_operations
734,833
statistics
easy
What is the mean (average) of 58, 29, 25?
37.33
Mean = sum/count. Sum = 58+29+25=112. Count=3. Mean=112/3=37.33.
mean
734,834
arithmetic
easy
What is 8142 divided by 36? Give answer to 2 decimal places.
226.17
Calculate 8142/ 36 = 226.1667, rounded to 2 decimals is 226.17.
division
734,835
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
734,836
statistics
easy
What is the mean (average) of 25, 4, 25, 33?
21.75
Mean = sum/count. Sum = 25+4+25+33=87. Count=4. Mean=87/4=21.75.
mean
734,837
exponents
easy
What is 5^4?
625
5^4 means multiply 5 by itself 4 times: 5*5*5*5 = 625.
exponents
734,838
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
734,839
calculus
medium
What is the derivative of 7x^3 with respect to x?
21x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^3] = 7*3*x^2 = 21x^2.
derivative
734,840
arithmetic
easy
What is 777 + 202?
979
Add the two numbers: 777 + 202 = 979.
basic_operations
734,841
statistics
easy
What is the mean (average) of 29, 67, 62, 53, 81?
58.4
Mean = sum/count. Sum = 29+67+62+53+81=292. Count=5. Mean=292/5=58.4.
mean
734,842
algebra
medium
Solve for x: x^2 - 9x + 20 = 0
x = 5, 4
Factor: (x - 5)(x - 4) = x^2 -(9)x + 20 = 0. So x = 5 or 4. Check sum = 9, product = 20.
quadratic
734,843
roots
easy
What is the square root of 169?
13
Find number that when squared gives 169. 13*13=169, so sqrt(169)=13.
square_roots
734,844
fractions
medium
What is 14/16 + 7/8? Give as simplified fraction.
7/4
Common denominator 16*8=128. 14/16=112/128, 7/8=112/128. Sum = 224/128 = 7/4 simplified.
fraction_operations
734,845
algebra
medium
Solve for x: x^2 - 6x = 0
x = 6, 0
Factor: (x - 6)(x - 0) = x^2 -(6)x + 0 = 0. So x = 6 or 0. Check sum = 6, product = 0.
quadratic
734,846
algebra
medium
Solve for x: x^2 - 1 = 0
x = 1, -1
Factor: (x - 1)(x - -1) = x^2 -(0)x + -1 = 0. So x = 1 or -1. Check sum = 0, product = -1.
quadratic
734,847
algebra
easy
Solve for x: 6x + 45 = -27
-12
Subtract 45 from both sides: 6x = -27-45=-72. Then divide by 6: x = -72/6 = -12.
linear_equation
734,848
calculus
medium
What is the derivative of 1x^3 with respect to x?
3x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^3] = 1*3*x^2 = 3x^2.
derivative
734,849
algebra
easy
Solve for x: 1x + 3 = 20
17
Subtract 3 from both sides: 1x = 20-3=17. Then divide by 1: x = 17/1 = 17.
linear_equation
734,850
arithmetic
easy
What is 799 - 451?
348
Subtract: 799 - 451 = 348.
basic_operations
734,851
algebra
medium
Solve for x: x^2 + 2x = 0
x = -2, 0
Factor: (x - -2)(x - 0) = x^2 -(-2)x + 0 = 0. So x = -2 or 0. Check sum = -2, product = 0.
quadratic
734,852
percentages
easy
What is 21% of 575?
120.75
Calculate 21/100 * 575 = 0.21*575 = 120.75.
percentages
734,853
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
734,854
arithmetic
easy
What is 515 + 369?
884
Add the two numbers: 515 + 369 = 884.
basic_operations
734,855
geometry
easy
Find the area of a triangle with base 47 and height 84.
1974
Area = 0.5*base*height = 0.5*47*84 = 1974.
triangle_area
734,856
geometry
easy
Find the area of a circle with radius 13. Use pi=3.14159, round to 2 decimals.
530.93
Area = pi*r^2 = 3.14159*13^2 = 3.14159*169 = 530.93.
circle_area
734,857
roots
easy
What is the square root of 676?
26
Find number that when squared gives 676. 26*26=676, so sqrt(676)=26.
square_roots
734,858
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
734,859
number_theory
medium
What is the LCM (least common multiple) of 22 and 18?
198
LCM = |22*18| / GCD(22,18). GCD=2, so LCM=396/2=198.
lcm
734,860
number_theory
medium
What is the GCD (greatest common divisor) of 84 and 47?
1
Find greatest number dividing both 84 and 47. Divisors common, greatest is 1.
gcd
734,861
arithmetic
easy
What is 2235 / 5?
447
Divide: 2235 ÷ 5 = 447 because 5*447=2235.
division
734,862
percentages
easy
What is 63% of 480?
302.4
Calculate 63/100 * 480 = 0.63*480 = 302.4.
percentages
734,863
word_problems
easy
If you have 93 books and you buy 21 more books, how many books do you have in total?
114
Add initial 93 plus bought 21: 93+21=114.
addition_word
734,864
algebra
easy
Solve for x: 8x + 46 = 46
0
Subtract 46 from both sides: 8x = 46-46=0. Then divide by 8: x = 0/8 = 0.
linear_equation
734,865
arithmetic
easy
What is 501 + 459 * 77? Remember order of operations.
35844
Order of operations (PEMDAS): first 459*77=35343, then 501+35343=35844.
basic_operations
734,866
number_theory
medium
What is the GCD (greatest common divisor) of 51 and 78?
3
Find greatest number dividing both 51 and 78. Divisors common, greatest is 3.
gcd
734,867
word_problems
easy
If you have 35 apples and you buy 12 more apples, how many apples do you have in total?
47
Add initial 35 plus bought 12: 35+12=47.
addition_word
734,868
algebra
medium
Solve for x: x^2 + 5x - 14 = 0
x = -7, 2
Factor: (x - -7)(x - 2) = x^2 -(-5)x + -14 = 0. So x = -7 or 2. Check sum = -5, product = -14.
quadratic
734,869
arithmetic
easy
What is 34 + 843?
877
Add the two numbers: 34 + 843 = 877.
basic_operations
734,870
algebra
easy
Solve for x: 12x - 14 = 94
9
Add 14 to both sides: 12x = 94+14=108. Then x = 108/12 = 9.
linear_equation
734,871
arithmetic
easy
What is 36655 divided by 80? Give answer to 2 decimal places.
458.19
Calculate 36655/ 80 = 458.1875, rounded to 2 decimals is 458.19.
division
734,872
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
734,873
word_problems
easy
If you have 83 apples and you buy 7 more apples, how many apples do you have in total?
90
Add initial 83 plus bought 7: 83+7=90.
addition_word
734,874
geometry
easy
Find the area of a rectangle with length 22 and width 26.
572
Area = length * width = 22*26 = 572.
rectangle_area
734,875
percentages
easy
What is 40% of 947?
378.8
Calculate 40/100 * 947 = 0.4*947 = 378.8.
percentages
734,876
fractions
medium
What is 9/13 - 15/3? Give as simplified fraction.
-56/13
Common denominator 39. Numerator 27-195=-168. So -168/39 simplifies to -56/13.
fraction_operations
734,877
roots
easy
What is the square root of 1156?
34
Find number that when squared gives 1156. 34*34=1156, so sqrt(1156)=34.
square_roots
734,878
calculus
medium
What is the derivative of 2x^8 with respect to x?
16x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^8] = 2*8*x^7 = 16x^7.
derivative
734,879
arithmetic
easy
What is 64 * 73?
4672
Multiply: 64 * 73 = 4672.
basic_operations
734,880
exponents
easy
What is 2^4?
16
2^4 means multiply 2 by itself 4 times: 2*2*2*2 = 16.
exponents
734,881
geometry
easy
Find the area of a circle with radius 6. Use pi=3.14159, round to 2 decimals.
113.1
Area = pi*r^2 = 3.14159*6^2 = 3.14159*36 = 113.1.
circle_area
734,882
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
734,883
arithmetic
easy
What is 944 - 836?
108
Subtract: 944 - 836 = 108.
basic_operations
734,884
calculus
medium
What is the derivative of 7x^5 with respect to x?
35x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^5] = 7*5*x^4 = 35x^4.
derivative
734,885
word_problems
easy
If you have 83 books and you buy 49 more books, how many books do you have in total?
132
Add initial 83 plus bought 49: 83+49=132.
addition_word
734,886
geometry
easy
Find the area of a triangle with base 96 and height 21.
1008
Area = 0.5*base*height = 0.5*96*21 = 1008.
triangle_area
734,887
calculus
medium
What is the derivative of 2x^3 with respect to x?
6x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^3] = 2*3*x^2 = 6x^2.
derivative
734,888
algebra
easy
Solve for x: 9x - 3 = 42
5
Add 3 to both sides: 9x = 42+3=45. Then x = 45/9 = 5.
linear_equation
734,889
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
734,890
fractions
medium
What is 8/9 * 13/3? Give as simplified fraction.
104/27
Multiply numerators: 8*13=104. Denominators: 9*3=27. Simplify by gcd 1 to get 104/27.
fraction_operations
734,891
statistics
easy
What is the mean (average) of 50, 55, 52?
52.33
Mean = sum/count. Sum = 50+55+52=157. Count=3. Mean=157/3=52.33.
mean
734,892
fractions
medium
What is 14/6 - 11/18? Give as simplified fraction.
31/18
Common denominator 108. Numerator 252-66=186. So 186/108 simplifies to 31/18.
fraction_operations
734,893
roots
easy
What is the square root of 1600?
40
Find number that when squared gives 1600. 40*40=1600, so sqrt(1600)=40.
square_roots
734,894
roots
easy
What is the square root of 2401?
49
Find number that when squared gives 2401. 49*49=2401, so sqrt(2401)=49.
square_roots
734,895
algebra
easy
Solve for x: 20x + 27 = 367
17
Subtract 27 from both sides: 20x = 367-27=340. Then divide by 20: x = 340/20 = 17.
linear_equation
734,896
number_theory
medium
What is the GCD (greatest common divisor) of 58 and 6?
2
Find greatest number dividing both 58 and 6. Divisors common, greatest is 2.
gcd
734,897
fractions
medium
What is 19/12 * 1/5? Give as simplified fraction.
19/60
Multiply numerators: 19*1=19. Denominators: 12*5=60. Simplify by gcd 1 to get 19/60.
fraction_operations
734,898
arithmetic
easy
What is 5738 / 19?
302
Divide: 5738 ÷ 19 = 302 because 19*302=5738.
division
734,899
geometry
easy
Find the area of a rectangle with length 41 and width 74.
3034
Area = length * width = 41*74 = 3034.
rectangle_area
734,900
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