Chapter 7 Review

PEMDAS and Exponents

100

Rewrite using an exponent: 4 x 4 x 4 x 4 x 4

4⁵

200

Evaluate: 4² + 7 x 2

30

300

Evaluate: (1/2)²

1/4

400

Evaluate: 12 ÷ 4 x 5

15

500

Evaluate: (3 + 7) x (2²+1)

50

Variable Expressions

100

Solve the following expression if x = 8

x + 10

18

200

Solve the following expression if x = 3 and y = 4

4x + y 

16

300

Solve the following if a= 5 and b=6

ab + 10

40

400

Solve the following if a = 1/2 and b = 7

16a + b²

57

500

Solve the following expression if a = 5, b = 2, and c= 4

abc + a² - 2bc

49

Properties of Numbers

100

What property is shown:

a + 0 = a

Identity property of addition

200

What property is demonstrated below:

4 + 5 + 7 = 7 + 4 + 5

Commutative

300

What property is demonstrated below:

1a = a

Identity Property of Multiplication

400

What property is demonstrated below:

(d x f) x e = d x (f x e)

Associative

500

What property is demonstrated below:

4(x + 5)

4x + (4)(5)= 4x + 20

Distributive Property

Simplifying Expressions

100

Simplify: 5x + 3x

8x

200

Simplify: 2x + 4y + 10x

12x + 4y OR 4y + 12x

300

Simplify: 8x + 3y + 8x + 3y

16x + 6y

400

Simplify: 6y + 4x + x + 13y

19y + 5x

500

Simplify: 5x + 4y + 2z + 3z + 7x + y

12x + 5y + 5z

In any order

Everything Else!

100

Rewrite using the distributive property:

3(2x + 6)

6x + 18

200

Translate into an algebraic expression:

seven dollars less than she had

x - 7

Any variable counts

300

Factor:

(8x +12)

4(2x +3)

400

Rewrite using the distributive property:

5(4x + 3y)

20x + 15y

500

Factor:

(12x + 18y)

6(2x +3y)