Mental Math Percents Review

Figure the 20% tip:  
Bill totals $142.00

• $28.40

• $20.00

• $14.20

• $1.42

What is 10% of 15?

• 5

• 1.56

• 2.5

Find 80 % of 80

• 64

• 160

• 100

• 10

10% OF $18.30

• $183

• $10.00

• $1.83

• $0.18

What is 5% of 80?

• 4

• 8

• 20

• 16

A student earned an 80% on a math test that had 20 problems.  How many problems on the test did the student answer correctly?

• 20

• 4

• 16

• 12

Calculate 25% of 80

• 20

• 80

• 48

• 95

What is 30% of 50?

• 16

• 16.3

• 17.4

• 15

75% of 240

• 140

• 175

• 50

• 180

12% of 150

• 18

• 75

• 55

• 20