This topic practices calculating the final amount of money given an initial principle and a certain percentage of interest. Multiple problems are presented where interest rates, based in 10% increments, are added to a specified principle amount. The learner is to determine how the principle amount changes by these percentages, such as 60%, 90%, and up to 100%. Each problem provides multiple-choice answers.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
morePercent 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
| $10 principle plus 60% interest |
| Calculate the final amount when it changes by a percentage |
a
| $23.20 |
b
| $16.00 |
c
| $11.20 |
d
| $8.00 |
e
| $12.00 |
f
| $9.60 |
2
| 50% interest on $20 principle |
| Calculate the final amount when it changes by a percentage |
a
| $30.00 |
b
| $22.50 |
c
| $25.50 |
d
| $36.00 |
e
| $40.50 |
f
| $34.50 |
3
| $10 principle plus 40% interest |
| Calculate the final amount when it changes by a percentage |
a
| $8.40 |
b
| $12.60 |
c
| $11.90 |
d
| $14.00 |
e
| $7.70 |
f
| $20.30 |
4
| $50 principle plus 40% interest |
| Calculate the final amount when it changes by a percentage |
a
| $56.00 |
b
| $91.00 |
c
| $101.50 |
d
| $45.50 |
e
| $52.50 |
f
| $70.00 |
5
| $100 principle grows by 80% interest |
| Calculate the final amount when it changes by a percentage |
a
| $243.00 |
b
| $162.00 |
c
| $234.00 |
d
| $180.00 |
e
| $216.00 |
f
| $189.00 |
6
| $100 principle plus 50% interest |
| Calculate the final amount when it changes by a percentage |
a
| $202.50 |
b
| $180.00 |
c
| $135.00 |
d
| $187.50 |
e
| $150.00 |
f
| $172.50 |
7
| $60 principle plus 100% interest |
| Calculate the final amount when it changes by a percentage |
a
| $120.00 |
b
| $162.00 |
c
| $96.00 |
d
| $126.00 |
e
| $72.00 |
f
| $114.00 |