Percent growth of money (principle and interest) (10% multiples) (Level 2)

The topics in this unit focus on being able to calculate and work with simple percentage. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Percent growth of money (principle and interest) (10% multiples) Worksheet

Math worksheet on 'Percent growth of money (principle and interest) (10% multiples) (Level 2)'. Part of a broader unit on 'Percents and Simple Interest - Intro' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_intro/

1

Add 60% interest to $80 principle

Calculate the final amount when it changes by a percentage

a

$76.80

b

$115.20

c

$128.00

d

$96.00

e

$102.40

f

$89.60

2

$80 principle grows by 90% interest

Calculate the final amount when it changes by a percentage

a

$220.40

b

$197.60

c

$152.00

d

$167.20

e

$205.20

f

$129.20

3

$20 principle plus 60% interest

Calculate the final amount when it changes by a percentage

a

$32.00

b

$22.40

c

$27.20

d

$20.80

e

$36.80

f

$35.20

4

Add 100% interest to $80 principle

Calculate the final amount when it changes by a percentage

a

$136.00

b

$160.00

c

$120.00

d

$104.00

e

$112.00

f

$208.00

5

$10 principle plus 40% interest

Calculate the final amount when it changes by a percentage

a

$14.00

b

$8.40

c

$20.30

d

$11.90

e

$12.60

f

$7.70

6

100% interest on $70 principle

Calculate the final amount when it changes by a percentage

a

$189.00

b

$133.00

c

$140.00

d

$84.00

e

$175.00

f

$91.00

7

$60 principle plus 40% interest

Calculate the final amount when it changes by a percentage

a

$84.00

b

$46.20

c

$100.80

d

$88.20

e

$105.00

f

$121.80