Algebra
If 4x=36, what is x?
x=9
What is the sum of the angles of a rectangle?
360
What is the smallest prime number greater than 40?
41
What is the probability of rolling an even number on a six-sided die?
1/2 or 50%
What number becomes even when you remove one letter?
seven
What 2 numbers multiply to 24 and add to 11
8 and 3
15
What is the greatest common factor of 48 and 72?
24
What is the average of 14, 18, 22, 26?
20
A farmer has 17 sheep. All but 9 run away. How many remain?
9
If x+y=12 and xy=32, what's x2 + y2?
80
A circle has a diameter of 12cm. What is its area in terms of π?
36π cm2
How many positive factors does 36 have?
9
Two six-sided dice are rolled. What is the probability that both dice show the same number?
1/6
Three consecutive integers add up to 72. What are they? (ex. 1,2,3=6)
23,24,25
Solve for x: 3(x-2) = 2(x+5)
x=16
How many diagonals does an octagon have?
20
What is the smallest positive integer divisible by every number from 1 to 6?
60
Two dice are rolled. What is the probability that they add to 8?
5/36
If 5 machines take 5 minutes to make 5 products, how long do 100 machines take to make 100 products?
5 minutes
If x + 1/x = 3, what is x2 + 1/x2?
7
A square has a hypotenuse of √ 200. What is its area?
100cm2
What is the largest 2-digit number with exactly 3 factors?
49
A bag contains 4 red, 3 green, and 5 blue marbles. Two are selected without replacement. What is the probability that both are red?
1/11
A clock shows 4:00. What is the smaller angle between the hour and minute hands?
120 degrees