5/19/21 Pre-Algebra Mixed Review Set 1

Which of the following are additive inverses? Select all the apply.

• 10 and -10

• 7 and 0.7

• -⅜ and ⅜

• 5 and 1/5

• -4.35 and 4.35

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a fraction.
• A rational number cannot be a repeating  decimal.

√7

• Rational 
• Irrational

What type of number is π ?

• Rational
• Irrational

Between which two whole numbers is this located?
√31

• 2 and 3
• 7 and 8
• 5 and 6
• 4 and 5

6x-5+3x
Is this an expression or an equation?

• expression
• equation
• I'm not sure

Which of the following is equivalent to 9(5c + 4)?

• 45c + 36
• 81c
• 45c + 4
• 49c

Use the Distributive Property to solve the equation.
4( x + 2) = 16

• -2
• 0
• 1
• 2

Simplify:

-10x + 15 - 3x + 2

• 4x

• -13x² + 13

• -13x + 17

• -7x + 17

4x + 10 = -26

• 4
• -4
• -9
• 9