Expressions Unit Review

Writing Expressions

100

Four less than a number.

x-4

200

The quotient of seven and a number, added to ten.

(7/x)+10

300

The sum of half a number and four.

(x/2)+4

400

Sixteen less than a number squared.  

x^2 - 16

500

Half of the product of three and a number. 

(3x)/2

Evaluating Expressions

100

x-5

x=10

5

200

2(x – 3)

x = 15

24

300

8x + 2y 

y = 6 and x = 3

36

400

y(x ÷ 2) 

x = 20 and y = 10

100

500

xy + 2x 

x = 7 and y = 5

49

Exponents and Order of Operations

100

Write in exponential form. 

4x4x4x4x4x4

4⁶

200

Solve:

4+(5x6)-2

32

300

Solve:

6²

36

400

Solve: 

7(8+2)-10

60

500

Solve:

3²⁺2³-(3+10)/2

10.5

Distributive Property

100

2(1+2)

6

200

2(5 + 2) 

14

300

12(5 + 3)

96

400

9(15 – 5)

90

500

  4(3 – 2)+14(6 + 12)

256

Properties

100

Give an example of the identity property of addition.

Answers will vary:

x+0=x

200

Name each property shown.

 (3 x 5) x 1 = 1 x (3 x 5)

Commutative property of multiplication.

300

Name the property shown.

(9 + 3) + 2 = 9 + (3 + 2)

Associative property of addition.

400

Give an example of the Associative property of addition.

Answers will vary:

a+(b+c)=(a+b)+c

500

Name the property shown:

(8 + 7) + 4 = 4 + (8 + 7)

Commutative property of addition.