Free Printable Math 8 Unit 3 FLEX Review

1.

Which expression is modeled?

a)

-3x - 6

b)

3x + 6

c)

-6x + 3

d)

3x - 6

2.

Which expression is modeled?

a)

-3x - 4

b)

-4x -3

c)

3x - 4

d)

-3x + 4

3.

Simplify

a)

3x + 3

b)

3x -2

c)

-3x + 3

d)

-3x - 2

4.

Evaluate when a = 15:
2(a - 5) + 2

a)

22

b)

27

c)

14

d)

7

5.

Evaluate Expressions a = 3 b = 4

7a + 8b x 2

a)

110

b)

100

c)

80

d)

85

6.

What is the correct order of operations?

a)

PMDSE

b)

DASEMP

c)

SPEMAD

d)

GEMDAS

7.

Use order of operations to evaluate this numerical expression.

(a)

8.

Evaluate each expression if x = 2, y = 3, z = 4

(Leave answer as improper fraction)

(a)

9.

Simplify this expression (combine like terms):
x + x + x + x

a)

4 - x

b)

4x

c)

x

d)

x+4

10.

Simplify this expression (Distributive Property & Combine Like Terms):
7x -3 (x + 10) - 4

a)

4x + 34

b)

4x -34

c)

-4x -14

d)

x+4

11.

Simplify this expression (Distributive Property & Combine Like Terms):
12 +3(-2x - 6) - 4x

a)

2x + 18

b)

10x -6

c)

-6 -10x

d)

6x+10

12.

Combine the Like Terms

4x - 3 + 2 - 2x

a)

6x + 5

b)

2x + 1

c)

2x - 1

d)

6x - 1

13.

Combine the like terms

11t - 5 + 6 - 14t

a)

25t + 11

b)

-25t + 1

c)

3t - 11

d)

-3t + 1

14.

6 (x + y + 7)

a)

6x + 6y + 42

b)

12xy + 42

c)

6x + 6y + 7

d)

6x6y + 42

15.

Which of the following is equivalent to 4(2x + 3)

a)

8x + 12

b)

8x + 3

c)

8x - 12

d)

20x

16.

What do the parentheses tell you to do?

a)

Add

b)

Subtract

c)

Multiply

d)

Divide

17.

Simplify the expression below:

-4(-6x + 10)

a)

-24x + -40

b)

24x + 40

c)

24x + -40

d)

-24x + 40

18.

Find an equivalent expression for the given expression: 36x + 24

a)

4(9x + 7)

b)

4(9x + 8)

c)

2(18x + 12)

d)

12(3x + 3)

19.

Which of the following expressions correctly combines like terms?

a)

$4x+7+2x-4y\ =\ 6x+3y$

b)

$2x+7y+2x-4y\ =\ 4x+3y$

c)

$2x+7y+2x-4=4x+3y$

d)

$4x+7y+2x+4y=6x+3y$

20.

Which expression has the same value as $-4\left(-5+x\right)$ ?

a)

$-4\left(-5\right)\ +\ \left(-4\right)x$

b)

$\left(-4-5\right)\cdot\left(-4+\left(-x\right)\right)$

c)

$-4\left(5\right)-4x$

d)

$\left(4-5\right)\cdot\left(-4-x\right)$

Math 8 Unit 3 FLEX Review

Total questions: 20

Worksheet time: 2hrs 24mins

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