This math topic practices calculating the percent growth of money, focusing on examples where the interest added to the principal is in multiples of 5%. It covers how to determine the total amount of money after the addition of interest, reinforcing concepts of percentages and simple interest. Each problem involves finding the total after a specific percentage of interest is added to a given principal, developing a foundational understanding of how interest affects financial growth.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
morePercent growth of money (principle and interest) (5% multiples) Worksheet
| Math worksheet on 'Percent growth of money (principle and interest) (5% 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
| $80 principle grows by 25% interest |
| Calculate the final amount when it changes by a percentage |
a
| $85.00 |
b
| $140.00 |
c
| $65.00 |
d
| $110.00 |
e
| $70.00 |
f
| $100.00 |
2
| Add 25% interest to $60 principle |
| Calculate the final amount when it changes by a percentage |
a
| $93.75 |
b
| $105.00 |
c
| $56.25 |
d
| $97.50 |
e
| $75.00 |
f
| $48.75 |
3
| Add 35% interest to $20 principle |
| Calculate the final amount when it changes by a percentage |
a
| $31.05 |
b
| $13.50 |
c
| $14.85 |
d
| $21.60 |
e
| $35.10 |
f
| $27.00 |
4
| $20 principle grows by 65% interest |
| Calculate the final amount when it changes by a percentage |
a
| $39.60 |
b
| $33.00 |
c
| $36.30 |
d
| $28.05 |
e
| $21.45 |
f
| $31.35 |
5
| Add 75% interest to $80 principle |
| Calculate the final amount when it changes by a percentage |
a
| $196.00 |
b
| $98.00 |
c
| $189.00 |
d
| $161.00 |
e
| $140.00 |
f
| $168.00 |
6
| $40 principle grows by 45% interest |
| Calculate the final amount when it changes by a percentage |
a
| $66.70 |
b
| $60.90 |
c
| $75.40 |
d
| $58.00 |
e
| $29.00 |
f
| $63.80 |
7
| $40 principle plus 95% interest |
| Calculate the final amount when it changes by a percentage |
a
| $109.20 |
b
| $78.00 |
c
| $105.30 |
d
| $85.80 |
e
| $74.10 |
f
| $97.50 |