Compound Interest (Year 10)
Free printable NZ Year 10 maths worksheet: build up compound interest year by year, find the total interest earned, and compare simple with compound interest. Every answer computed.
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Grade 9 · Math worksheet
Name
Date
Math
Compound Interest
Build up each account balance year by year: at the end of each year, add that year's interest to the balance before calculating the next year's interest.
- 1.Ruby invests $10800 at 5% per year (p.a.) compound interest, with the interest added to the account at the end of each year. Build up the balance year by year to find the amount in the account at the end of 2 years.
- 2.Sione invests $8000 at 5% per year (p.a.) compound interest, with the interest added to the account at the end of each year. Build up the balance year by year to find the amount in the account at the end of 3 years.
- 3.Mia invests $12000 at 5% per year (p.a.) compound interest, with the interest added to the account at the end of each year. Build up the balance year by year to find the amount in the account at the end of 2 years.
- 4.Wiremu invests $1000 at 10% per year (p.a.) compound interest, with the interest added to the account at the end of each year. Build up the balance year by year to find the amount in the account at the end of 2 years.
- 5.$13125 is invested at 4% p.a. compound interest for 2 years, with interest added at the end of each year. How much interest is earned in total over the 2 years?
- 6.$1250 is invested at 4% p.a. compound interest for 2 years, with interest added at the end of each year. How much interest is earned in total over the 2 years?
- 7.$11250 is invested at 4% p.a. compound interest for 2 years, with interest added at the end of each year. How much interest is earned in total over the 2 years?
- 8.$12000 is invested for 3 years at 10% p.a. Account A pays simple interest; account B pays compound interest, added at the end of each year. Find the interest each account earns, and how much more account B earns than account A.
- 9.$7500 is invested for 2 years at 4% p.a. Account A pays simple interest; account B pays compound interest, added at the end of each year. Find the interest each account earns, and how much more account B earns than account A.
- 10.$7000 is invested for 3 years at 10% p.a. Account A pays simple interest; account B pays compound interest, added at the end of each year. Find the interest each account earns, and how much more account B earns than account A.
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