Number Sense
Is 91 prime or composite?
Answer: Composite
18+3^2 times 4
Answer: 54
How many degrees are in each interior angle of a regular hexagon?
Answer: 120°
Solve: 5x - 9 =16
x = 5
What is the prime factorization of 72?
2^3 times 3^2
|-12|+3^2
21
Find the area of a triangle with base 10 and height 7.
Answer: 35 square units
simplify: (2x^2y)(-3xy^3)
-6x^3y^4
What is the GCF of 48 and 60?
Answer: 12
sqrt(81)+(5^2-9/4)
13
A circle has diameter 12. What is its area in terms of Pi?
36 Pi
x^2 - 9x+14=0
x = 7 or x = -3
Without a calculator, determine if 540 is divisible by 9.
Answer: Yes (digits add to 9)
(|-6+(3/2) times 8|)^2 - 4^2
32
A cylinder has radius 3 and height 10. What is its volume?
90 Pi
2/x + 2/x+1 = 1
x = 2 or x = -3