Grade 8 Algebra Test Prep

Operations Integers

100

What is the answer to -2 + 7 = ?

5

200

(-4)(5) = 

-20

300

-6 + (-8) =  

-14

400

(10 ÷ -5) (-2)

4

500

(2 × - 5) - (-6)

-4

Single Step Equations

100

x + 7 = 21

x = 14

200

-4 + x = 6

x = 10

300

9x = 27

x = 3

400

x ÷ 4 = 32

x = 8

500

-x = 12

x = -12

Two-step Equations

100

4x + 6 = 18

x = 3

200

6x - 7 = 23

x = 5

300

x ÷ 2 + 5 = 20

x = 30

400

x ÷ 3 - 5 = -6

x = -3

500

3x - (-5) = -16

x = -7

Distributive Property

100

Expand the expression 4(x + 5)

4x + 20

200

Expand the expression -3(x - 3)

-3x + 9 

300

Expand the expression -5 (4 - x)

-20 + 5x

400

Expand the expression 10(-x + (-10))

-10x - 100

500

Expand the expression 2x(x - 4)

2x^{2 -} 8x

Rules and Terminology

100

A combination of mathematical symbols

What is an Expression

200

A statement that the values of two mathematical expressions are equal

What is an Equation

300

The undefined/unknown of a mathematical expression

What is a Variable

400

The number in an expression that will not change/fixed

What is a Constant

500

The number/value associated with a variable

What is a Numerical Coefficient