7th Grade Percent Review

Percent Basics

100

5% as a decimal. 

.05

200

Write 125% as a decimal.

1.25

300

Write 0.375 as a percent.

37.5%

400

Order least to greatest: 15%, 0.4, 25%, 0.05

0.05, 15%, 25%, 0.4

500

Convert 2.75 to a percent.

275%

Percent of a Number

100

What is 45% of 60?

27

200

48 is what percent of 160?

30%

300

8 is 0.5% of what number?

1,600

400

What percent of 130 is 182?

140%

500

72 is what percent of 90?

80%

Percent of Change

100

$18.75 to $18.60 — increase or decrease? Percent change?

Decrease of 0.8%

200

2000 → 2660
What is the percent change?

33% increase

300

140 → 49
What is the percent change?

65% decrease

400

45 → 54
What is the percent change?

20% increase

500

2500 → 1875
What is the percent change?

25% decrease

Simple Interest

100

$800 at 6.5% for 2 years. Interest?

$104

200

Principal: $250
Rate: 12%
Time: 3 months

Find the interest earned.

(3 months = 0.25 years)

$7.50

300

Principal: $1,200
Rate: 5%
Time: 3 years

Find the interest earned.

$180

400

Principal: $2,500
Rate: 5%
Time: 4 years

Find the interest earned.

$500

500

Principal: $4,200
Rate: 7.5%
Time: 18 months

Find the interest earned.

(18 months = 1.5 years)

$472.50

Random Trivia

100

What is the largest desert in the world? 

Antarctica

200

What is the largest organ in the human body?

Skin

300

What does “www” stand for in a website address?
 

World Wide Web

400

What year was the first iPhone released?

2007

500

What is the only letter of the alphabet not to appear in the name of any US state?

Q