7th Grade Math Final Exam Review #3

WRITING EQUATIONS (Write each sentence as an algebraic equation)

100

sabotage

A number plus three is 9.

What is n + 3 =9?

200

The sum of x and 2 is 10.

What is x + 2 = 10?

300

Four cents more than the price is 93 cents.

What is 4 + p = 93?

400

sabotage

Fifteen minus y is 7.

What is 15 - y = 7?

500

Five dollars less than Yumi's pay is $124.

What is p - 5 = 124?

SOLVING ADDITION AND SUBTRACTION EQUATIONS

100

x + 2 = 8

What is x = 6?

200

sabotage

y + 7 = 9

What is y = 2?

300

sabotage

b - 4 =  9

What is b = 13?

400

8 = c - 4

What is c = 12?

500

sabotage

11 = t - 7

What is t = 18?

SOLVING MULTIPLICATION EQUATIONS

100

4c = 16

What is c = 4?

200

10x = 50

What is x = 5?

300

sabotage

42 = 6s

What is s = 7?

400

9c = 45

What is c = 5?

500

sabotage

49 = 7y

What is y = 7?

SOLVING INEQUALITIES

100

sabotage

g - 11 > 2

What is g > 13?

200

sabotage

a + 12 < 8

What is a < -4?

300

3t < 15

What is t < 5?

400

3w > 30

What is w > 10?

500

4n + 8 < 24

What is n < 4?

Percents and Decimals (Write each percent as a decimal)

100

sabotage

5%

What is 0.05?

200

20%

What is 0.20?

300

83%

What is 0.83?

400

sabotage

7%

What is 0.07?

500

56%

What is 0.56?