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
732,601
number_theory
medium
What is the GCD (greatest common divisor) of 41 and 23?
1
Find greatest number dividing both 41 and 23. Divisors common, greatest is 1.
gcd
732,602
algebra
medium
Solve for x: x^2 - 1x - 56 = 0
x = -7, 8
Factor: (x - -7)(x - 8) = x^2 -(1)x + -56 = 0. So x = -7 or 8. Check sum = 1, product = -56.
quadratic
732,603
arithmetic
easy
What is 445 + 993?
1438
Add the two numbers: 445 + 993 = 1438.
basic_operations
732,604
geometry
easy
Find the area of a circle with radius 11. Use pi=3.14159, round to 2 decimals.
380.13
Area = pi*r^2 = 3.14159*11^2 = 3.14159*121 = 380.13.
circle_area
732,605
roots
easy
What is the square root of 1764?
42
Find number that when squared gives 1764. 42*42=1764, so sqrt(1764)=42.
square_roots
732,606
arithmetic
easy
What is 420 - 30?
390
Subtract: 420 - 30 = 390.
basic_operations
732,607
percentages
easy
What is 3% of 224?
6.72
Calculate 3/100 * 224 = 0.03*224 = 6.72.
percentages
732,608
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
732,609
exponents
easy
What is 9^3?
729
9^3 means multiply 9 by itself 3 times: 9*9*9 = 729.
exponents
732,610
calculus
medium
What is the derivative of 8x^5 with respect to x?
40x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^5] = 8*5*x^4 = 40x^4.
derivative
732,611
calculus
medium
What is the derivative of 8x^3 with respect to x?
24x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^3] = 8*3*x^2 = 24x^2.
derivative
732,612
algebra
easy
Solve for x: 7x - 3 = 32
5
Add 3 to both sides: 7x = 32+3=35. Then x = 35/7 = 5.
linear_equation
732,613
arithmetic
easy
What is 21628 divided by 48? Give answer to 2 decimal places.
450.58
Calculate 21628/ 48 = 450.5833, rounded to 2 decimals is 450.58.
division
732,614
calculus
medium
What is the derivative of 2x^5 with respect to x?
10x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^5] = 2*5*x^4 = 10x^4.
derivative
732,615
number_theory
medium
What is the LCM (least common multiple) of 52 and 10?
260
LCM = |52*10| / GCD(52,10). GCD=2, so LCM=520/2=260.
lcm
732,616
arithmetic
easy
What is 705 - 458?
247
Subtract: 705 - 458 = 247.
basic_operations
732,617
statistics
easy
What is the mean (average) of 40, 89, 71?
66.67
Mean = sum/count. Sum = 40+89+71=200. Count=3. Mean=200/3=66.67.
mean
732,618
arithmetic
easy
What is 691 + 473?
1164
Add the two numbers: 691 + 473 = 1164.
basic_operations
732,619
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
732,620
geometry
easy
Find the perimeter of a rectangle with length 41 and width 85.
252
Perimeter = 2*(length+width) = 2*(41+85) = 2*126 = 252.
rectangle_perim
732,621
statistics
easy
What is the mean (average) of 77, 81, 57, 65, 16?
59.2
Mean = sum/count. Sum = 77+81+57+65+16=296. Count=5. Mean=296/5=59.2.
mean
732,622
arithmetic
easy
What is 434 + 49 * 58? Remember order of operations.
3276
Order of operations (PEMDAS): first 49*58=2842, then 434+2842=3276.
basic_operations
732,623
algebra
medium
Solve for x: x^2 + 10x + 25 = 0
x = -5
Factor as (x - -5)^2 = 0, so root is -5 (double root). Sum of roots = -10, product = 25.
quadratic
732,624
arithmetic
easy
What is 2 * 95?
190
Multiply: 2 * 95 = 190.
basic_operations
732,625
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
732,626
roots
easy
What is the square root of 729?
27
Find number that when squared gives 729. 27*27=729, so sqrt(729)=27.
square_roots
732,627
percentages
easy
What is 82% of 203?
166.46
Calculate 82/100 * 203 = 0.82*203 = 166.46.
percentages
732,628
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
732,629
statistics
easy
What is the mean (average) of 5, 73, 53, 9, 76?
43.2
Mean = sum/count. Sum = 5+73+53+9+76=216. Count=5. Mean=216/5=43.2.
mean
732,630
arithmetic
easy
What is 951 - 385?
566
Subtract: 951 - 385 = 566.
basic_operations
732,631
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
732,632
number_theory
medium
What is the LCM (least common multiple) of 36 and 68?
612
LCM = |36*68| / GCD(36,68). GCD=4, so LCM=2448/4=612.
lcm
732,633
number_theory
medium
What is the GCD (greatest common divisor) of 81 and 77?
1
Find greatest number dividing both 81 and 77. Divisors common, greatest is 1.
gcd
732,634
fractions
medium
What is 11/6 * 1/12? Give as simplified fraction.
11/72
Multiply numerators: 11*1=11. Denominators: 6*12=72. Simplify by gcd 1 to get 11/72.
fraction_operations
732,635
arithmetic
easy
What is 790 / 5?
158
Divide: 790 ÷ 5 = 158 because 5*158=790.
division
732,636
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
732,637
geometry
easy
Find the area of a circle with radius 33. Use pi=3.14159, round to 2 decimals.
3421.19
Area = pi*r^2 = 3.14159*33^2 = 3.14159*1089 = 3421.19.
circle_area
732,638
geometry
easy
Find the area of a circle with radius 24. Use pi=3.14159, round to 2 decimals.
1809.56
Area = pi*r^2 = 3.14159*24^2 = 3.14159*576 = 1809.56.
circle_area
732,639
fractions
medium
What is 15/5 - 8/19? Give as simplified fraction.
49/19
Common denominator 95. Numerator 285-40=245. So 245/95 simplifies to 49/19.
fraction_operations
732,640
algebra
easy
Solve for x: 14x + 18 = -220
-17
Subtract 18 from both sides: 14x = -220-18=-238. Then divide by 14: x = -238/14 = -17.
linear_equation
732,641
word_problems
easy
If you have 73 apples and you buy 32 more apples, how many apples do you have in total?
105
Add initial 73 plus bought 32: 73+32=105.
addition_word
732,642
roots
easy
What is the square root of 900?
30
Find number that when squared gives 900. 30*30=900, so sqrt(900)=30.
square_roots
732,643
statistics
easy
What is the mean (average) of 7, 57, 30, 43?
34.25
Mean = sum/count. Sum = 7+57+30+43=137. Count=4. Mean=137/4=34.25.
mean
732,644
geometry
easy
Find the circumference of a circle with radius 32. Use pi=3.14159, round to 2 decimals.
201.06
Circumference = 2*pi*r = 2*3.14159*32 = 201.06.
circle_circum
732,645
statistics
easy
What is the mean (average) of 63, 38, 76, 55?
58
Mean = sum/count. Sum = 63+38+76+55=232. Count=4. Mean=232/4=58.0.
mean
732,646
fractions
medium
What is 6/14 - 6/19? Give as simplified fraction.
15/133
Common denominator 266. Numerator 114-84=30. So 30/266 simplifies to 15/133.
fraction_operations
732,647
arithmetic
easy
What is 541 - 136?
405
Subtract: 541 - 136 = 405.
basic_operations
732,648
arithmetic
easy
What is 140 + 835?
975
Add the two numbers: 140 + 835 = 975.
basic_operations
732,649
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
732,650
arithmetic
easy
What is 76 * 90?
6840
Multiply: 76 * 90 = 6840.
basic_operations
732,651
statistics
easy
What is the mean (average) of 2, 9, 94?
35
Mean = sum/count. Sum = 2+9+94=105. Count=3. Mean=105/3=35.0.
mean
732,652
calculus
medium
What is the derivative of 8x^2 with respect to x?
16x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^2] = 8*2*x^1 = 16x.
derivative
732,653
percentages
easy
What is 64% of 57?
36.48
Calculate 64/100 * 57 = 0.64*57 = 36.48.
percentages
732,654
word_problems
easy
If you have 48 books and you buy 30 more books, how many books do you have in total?
78
Add initial 48 plus bought 30: 48+30=78.
addition_word
732,655
fractions
medium
What is 8/5 + 11/19? Give as simplified fraction.
207/95
Common denominator 5*19=95. 8/5=152/95, 11/19=55/95. Sum = 207/95 = 207/95 simplified.
fraction_operations
732,656
fractions
medium
What is 9/3 - 20/15? Give as simplified fraction.
5/3
Common denominator 45. Numerator 135-60=75. So 75/45 simplifies to 5/3.
fraction_operations
732,657
arithmetic
easy
What is 104 + 551 * 45? Remember order of operations.
24899
Order of operations (PEMDAS): first 551*45=24795, then 104+24795=24899.
basic_operations
732,658
arithmetic
easy
What is 263 - 87?
176
Subtract: 263 - 87 = 176.
basic_operations
732,659
geometry
easy
Find the area of a triangle with base 96 and height 61.
2928
Area = 0.5*base*height = 0.5*96*61 = 2928.
triangle_area
732,660
percentages
easy
What is 13% of 99?
12.87
Calculate 13/100 * 99 = 0.13*99 = 12.87.
percentages
732,661
arithmetic
easy
What is 82 * 52?
4264
Multiply: 82 * 52 = 4264.
basic_operations
732,662
fractions
medium
What is 10/7 - 1/9? Give as simplified fraction.
83/63
Common denominator 63. Numerator 90-7=83. So 83/63 simplifies to 83/63.
fraction_operations
732,663
arithmetic
easy
What is 42488 / 94?
452
Divide: 42488 ÷ 94 = 452 because 94*452=42488.
division
732,664
fractions
medium
What is 3/11 + 12/18? Give as simplified fraction.
31/33
Common denominator 11*18=198. 3/11=54/198, 12/18=132/198. Sum = 186/198 = 31/33 simplified.
fraction_operations
732,665
geometry
easy
Find the circumference of a circle with radius 31. Use pi=3.14159, round to 2 decimals.
194.78
Circumference = 2*pi*r = 2*3.14159*31 = 194.78.
circle_circum
732,666
arithmetic
easy
What is 16988 / 62?
274
Divide: 16988 ÷ 62 = 274 because 62*274=16988.
division
732,667
fractions
medium
What is 18/3 * 1/5? Give as simplified fraction.
6/5
Multiply numerators: 18*1=18. Denominators: 3*5=15. Simplify by gcd 3 to get 6/5.
fraction_operations
732,668
exponents
easy
What is 6^2?
36
6^2 means multiply 6 by itself 2 times: 6*6 = 36.
exponents
732,669
arithmetic
easy
What is 31 * 1?
31
Multiply: 31 * 1 = 31.
basic_operations
732,670
percentages
easy
What is 44% of 231?
101.64
Calculate 44/100 * 231 = 0.44*231 = 101.64.
percentages
732,671
statistics
easy
What is the mean (average) of 65, 99, 37?
67
Mean = sum/count. Sum = 65+99+37=201. Count=3. Mean=201/3=67.0.
mean
732,672
algebra
easy
Solve for x: 9x + 47 = -70
-13
Subtract 47 from both sides: 9x = -70-47=-117. Then divide by 9: x = -117/9 = -13.
linear_equation
732,673
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
732,674
arithmetic
easy
What is 2255 / 5?
451
Divide: 2255 ÷ 5 = 451 because 5*451=2255.
division
732,675
word_problems
easy
If you have 89 candies and you buy 44 more candies, how many candies do you have in total?
133
Add initial 89 plus bought 44: 89+44=133.
addition_word
732,676
statistics
easy
What is the mean (average) of 84, 86, 49?
73
Mean = sum/count. Sum = 84+86+49=219. Count=3. Mean=219/3=73.0.
mean
732,677
number_theory
medium
What is the LCM (least common multiple) of 59 and 5?
295
LCM = |59*5| / GCD(59,5). GCD=1, so LCM=295/1=295.
lcm
732,678
exponents
easy
What is 2^4?
16
2^4 means multiply 2 by itself 4 times: 2*2*2*2 = 16.
exponents
732,679
arithmetic
easy
What is 900 + 886 * 83? Remember order of operations.
74438
Order of operations (PEMDAS): first 886*83=73538, then 900+73538=74438.
basic_operations
732,680
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
732,681
algebra
easy
Solve for x: 10x + 3 = 103
10
Subtract 3 from both sides: 10x = 103-3=100. Then divide by 10: x = 100/10 = 10.
linear_equation
732,682
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
732,683
algebra
medium
Solve for x: x^2 + 13x + 36 = 0
x = -4, -9
Factor: (x - -4)(x - -9) = x^2 -(-13)x + 36 = 0. So x = -4 or -9. Check sum = -13, product = 36.
quadratic
732,684
calculus
medium
What is the derivative of 4x^5 with respect to x?
20x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [4x^5] = 4*5*x^4 = 20x^4.
derivative
732,685
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
732,686
number_theory
medium
What is the GCD (greatest common divisor) of 90 and 46?
2
Find greatest number dividing both 90 and 46. Divisors common, greatest is 2.
gcd
732,687
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
732,688
arithmetic
easy
What is 11 * 13?
143
Multiply: 11 * 13 = 143.
basic_operations
732,689
statistics
easy
What is the mean (average) of 23, 56, 64?
47.67
Mean = sum/count. Sum = 23+56+64=143. Count=3. Mean=143/3=47.67.
mean
732,690
percentages
easy
What is 70% of 601?
420.7
Calculate 70/100 * 601 = 0.7*601 = 420.7.
percentages
732,691
arithmetic
easy
What is 46 + 66 * 89? Remember order of operations.
5920
Order of operations (PEMDAS): first 66*89=5874, then 46+5874=5920.
basic_operations
732,692
statistics
easy
What is the mean (average) of 39, 87, 100?
75.33
Mean = sum/count. Sum = 39+87+100=226. Count=3. Mean=226/3=75.33.
mean
732,693
algebra
medium
Solve for x: x^2 + 1x - 42 = 0
x = -7, 6
Factor: (x - -7)(x - 6) = x^2 -(-1)x + -42 = 0. So x = -7 or 6. Check sum = -1, product = -42.
quadratic
732,694
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
732,695
roots
easy
What is the square root of 64?
8
Find number that when squared gives 64. 8*8=64, so sqrt(64)=8.
square_roots
732,696
arithmetic
easy
What is 739 + 513?
1252
Add the two numbers: 739 + 513 = 1252.
basic_operations
732,697
arithmetic
easy
What is 22 * 64?
1408
Multiply: 22 * 64 = 1408.
basic_operations
732,698
percentages
easy
What is 95% of 674?
640.3
Calculate 95/100 * 674 = 0.95*674 = 640.3.
percentages
732,699
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
732,700
algebra
easy
Solve for x: 9x + 6 = -102
-12
Subtract 6 from both sides: 9x = -102-6=-108. Then divide by 9: x = -108/9 = -12.
linear_equation