Percent of a Number
Unknown Percent
Unknown Whole
(A is % of what?)
Percent Expressions (Choose the Correct Form)
Word Problems with Percent
Ratio + Percent Combined Problems
100

What is 20% of 80?

16

100

___% of 20 is 15.

75%

100

18 is 90% of what number?

20

100

Which expression correctly represents 20% of 80?

²⁰⁄₁₀₀ * 80

100

An item is 30% off its original price of $100. What is the sale price?

$70

100

There are 5 chaperones for every 30 students. If there are 175 people total, how many are chaperones?

25

200

What is 150% of 84?

126

200

___% of 170 is 68

40%

200

48 is 120% of what number?

40

200

Which expression represents 75% of 20?

0.75 ⋅ 20 OR ¾ * 20

200

 A shirt costing $50 is discounted 20%. What is the discount amount?

$10

200

There are 5 chaperones for every 30 students. If there are 175 people total, how many students are on the field trip?

150

300

What is 5% of 420?

21

300

___% of 20 is 25.

125%

300

70 is 14% of what number?

500

300

Which expression correctly finds 5% of 88?

.05 * 88 OR ⁵⁄₁₀₀ * 88

300

Lin spent 80% of her savings on a $450 phone. How much savings did she start with?

$562.50

300

There are 5 chaperones for every 30 students. If there are 175 people total, then what percent of the group are chaperones (nearest whole percent)?

14%

400

What is 12% of 125?

15

400

14% of ___ is 70.

500

400

81 is 225% of what number?

36

400

Which expression represents "75 is 20% of __"?

²⁰⁄₁₀₀ * __ = 75

400

A number increased from 40 to 50. What percent increase is that?

25%

400

There are 5 chaperones for every 30 students. If there are 175 people total, then what percent are sixth graders (nearest whole percent)? 

86%

500

A phone costs $450 and this is 80% of Brian’s savings. How much money did Brian save?

$562.50

500

10% of ___ is 100.

1000

500

32 is 80% of what number?

40

500

Which expression correctly finds "A% of B"?

A/100 * B

500

A number decreased by 15% to become 170. What was the original number?

200

500

If the ratio changed to 6 chaperones per 24 students but total people stayed 175, would the percent of chaperones increase or decrease?

Increase