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Compound interest

Year 12 maths · Fieldbook Learning

Name ______________________ Date __________

Amount = P × (1 + r)ⁿ.

  1. $4,400 is invested at 4% a year, compounded yearly. What is it worth after 2 years? Round to the nearest cent at the end.
  2. $700 is invested at 5% a year, compounded yearly. What is it worth after 2 years? Round to the nearest cent at the end.
  3. $4,300 is invested at 6% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  4. $2,800 is invested at 5% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  5. $800 is invested at 2% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  6. $4,400 is invested at 4% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  7. $2,700 is invested at 3% a year, compounded yearly. What is it worth after 2 years? Round to the nearest cent at the end.
  8. $4,600 is invested at 5% a year, compounded yearly. What is it worth after 4 years? Round to the nearest cent at the end.
  9. $1,400 is invested at 3% a year, compounded yearly. What is it worth after 4 years? Round to the nearest cent at the end.
  10. $3,100 is invested at 4% a year, compounded yearly. What is it worth after 4 years? Round to the nearest cent at the end.
  11. $5,000 is invested at 5% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  12. $3,600 is invested at 4% a year, compounded yearly. What is it worth after 5 years? Round to the nearest cent at the end.
  13. $2,700 is invested at 3% a year, compounded yearly. What is it worth after 5 years? Round to the nearest cent at the end.
  14. $3,300 is invested at 4% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  15. $2,600 is invested at 4% a year, compounded yearly. What is it worth after 4 years? Round to the nearest cent at the end.
  16. $3,100 is invested at 5% a year, compounded yearly. What is it worth after 5 years? Round to the nearest cent at the end.
  17. $2,400 is invested at 6% a year, compounded yearly. What is it worth after 2 years? Round to the nearest cent at the end.
  18. $1,600 is invested at 3% a year, compounded yearly. What is it worth after 5 years? Round to the nearest cent at the end.
  19. $3,900 is invested at 2% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
  20. $2,000 is invested at 5% a year, compounded yearly. What is it worth after 3 years? Round to the nearest cent at the end.
More free practice: fieldbooklearning.com/au/practice/year-12/compound-interest/

Answer key: Compound interest

  1. $4759.04
  2. $771.75
  3. $5121.37
  4. $3241.35
  5. $848.97
  6. $4949.40
  7. $2864.43
  8. $5591.33
  9. $1575.71
  10. $3626.56
  11. $5788.13
  12. $4379.95
  13. $3130.04
  14. $3712.05
  15. $3041.63
  16. $3956.47
  17. $2696.64
  18. $1854.84
  19. $4138.71
  20. $2315.25