This math topic focuses on the calculation of the final amount of money after applying a percentage-based growth, which involves understanding and applying the concepts of percentages and simple interest. Questions require calculating total amounts including interest, using various principal amounts and interest rates. Interest rates used are simple, straightforward multiples of 10%. The problems are designed to assess and reinforce the learner's ability to handle basic interest calculations and percentage growth, foundational skills in managing and understanding growth in financial contexts.
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 1)'. Part of a broader unit on 'Percents and Simple Interest - Intro' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_intro/ |
1
| $60 principle plus 30% interest |
| Calculate the final amount when it changes by a percentage |
a
| $81.90 |
b
| $58.50 |
c
| $66.30 |
d
| $78.00 |
e
| $93.60 |
f
| $70.20 |
2
| $80 principle grows by 30% interest |
| Calculate the final amount when it changes by a percentage |
a
| $130.00 |
b
| $135.20 |
c
| $78.00 |
d
| $104.00 |
e
| $124.80 |
f
| $119.60 |
3
| 10% interest on $80 principle |
| Calculate the final amount when it changes by a percentage |
a
| $110.00 |
b
| $92.40 |
c
| $88.00 |
d
| $61.60 |
e
| $66.00 |
f
| $70.40 |
4
| $100 principle grows by 30% interest |
| Calculate the final amount when it changes by a percentage |
a
| $162.50 |
b
| $117.00 |
c
| $182.00 |
d
| $149.50 |
e
| $130.00 |
f
| $84.50 |
5
| $80 principle grows by 20% interest |
| Calculate the final amount when it changes by a percentage |
a
| $129.60 |
b
| $110.40 |
c
| $57.60 |
d
| $139.20 |
e
| $96.00 |
f
| $115.20 |
6
| Add 10% interest to $10 principle |
| Calculate the final amount when it changes by a percentage |
a
| $11.00 |
b
| $9.35 |
c
| $6.05 |
d
| $7.70 |
e
| $11.55 |
f
| $8.25 |
7
| 10% interest on $50 principle |
| Calculate the final amount when it changes by a percentage |
a
| $27.50 |
b
| $63.25 |
c
| $74.25 |
d
| $77.00 |
e
| $35.75 |
f
| $55.00 |