Mental Math Percents Review

Express the percent as a fraction in simplest form.

56%

• 0.56

• 14/25

• 7/12

• 56/100

Express the percent as a decimal.

8.4%

• 0.084

• 8.4

• 0.84

• 84.0

Express the percent as a fraction in simplest form.

12.5%

• 6.25/50

• 12.5/100

• 1/8

• 1/4

Express the fraction as a percent.

⅗

• 60%

• 0.6

• 40%

• 35%

Find x. *Hint: set up a proportion.

3/15 = x/45

• 12

• 6

• 9

• 135

Find x.

9/x = 27/30

• 10

• 2700

• 3

• 8.1

12 is 15% of what number?

• 1.8

• 125

• 45

• 80

25 is what percent of 365?

*Round to the nearest tenth.

• 25%

• 6.8%

• 1460%

• 6.8

What percent of 185 is 35?

*Round to the nearest tenth.

• 18.9%

• 65.4%

• 20.7%

• 10%

57% of 109 is what number?

*Round to the nearest whole number.

• 45

• 1045

• 62

• 206