This math topic focuses on calculating the growth of money through simple interest, specifically concentrating on increments by 5% multiples. It involves finding the final amount when a principal sum has grown by 25% in interest. Each problem provides a starting principal amount (in dollars), and learners are required to calculate how much that amount increases when 25% interest is added. The topic is aimed at building fluency in understanding percent increase and its practical application in financial contexts like interest earnings.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
morePractice:
Percent growth of money (principle and interest) (5% multiples)
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Calculate the final amount when it changes by a percentage
Add 25% interest to $16 principle
Earned ?
Percent growth of money (principle and interest) (5% multiples) Worksheet
| Math worksheet on 'Percent growth of money (principle and interest) (5% multiples) (Level 3)'. Part of a broader unit on 'Percents and Simple Interest - Intro' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_intro/ |
| $8 principle grows by 25% interest |
| Calculate the final amount when it changes by a percentage |
| $14.50 |
| $10.00 |
| $12.50 |
| $13.00 |
| $13.50 |
| $11.00 |
| Add 25% interest to $84 principle |
| Calculate the final amount when it changes by a percentage |
| $73.50 |
| $84.00 |
| $110.25 |
| $105.00 |
| $94.50 |
| $120.75 |
| 25% interest on $64 principle |
| Calculate the final amount when it changes by a percentage |
| $112.00 |
| $40.00 |
| $80.00 |
| $76.00 |
| $96.00 |
| $56.00 |
| $88 principle grows by 25% interest |
| Calculate the final amount when it changes by a percentage |
| $121.00 |
| $71.50 |
| $137.50 |
| $60.50 |
| $110.00 |
| $154.00 |
| Add 25% interest to $72 principle |
| Calculate the final amount when it changes by a percentage |
| $126.00 |
| $90.00 |
| $58.50 |
| $103.50 |
| $121.50 |
| $108.00 |
| 25% interest on $28 principle |
| Calculate the final amount when it changes by a percentage |
| $19.25 |
| $17.50 |
| $35.00 |
| $28.00 |
| $50.75 |
| $26.25 |
| $68 principle plus 25% interest |
| Calculate the final amount when it changes by a percentage |
| $51.00 |
| $85.00 |
| $68.00 |
| $102.00 |
| $89.25 |
| $123.25 |