Grade 8 · Year 9 · Class 8 · ages 13–14 · Percentages
Compound interest for 2 years: Grade 8 practice
Finding the amount when interest is added at the end of each year. Eight questions at a time, instant feedback and a mastery score from 0 to 100.
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Right answers raise your mastery score (more on harder questions) and wrong ones lower it a little. Your best score is saved on this device, and in your account if you log in.
The idea in one minute
Multiply by (100 + rate) ÷ 100 once for each year. The second year earns interest on the first year's interest too.
Try these on paper first
One question at each level. Tap a question to see the answer.
Easy ₹2,000 is invested at 20% a year, compounded yearly, for 2 years. The amount is ₹
Answer: 2880
Medium ₹10,000 is invested at 20% a year, compounded yearly, for 2 years. The amount is ₹
Answer: 14400
Challenge ₹36,800 is invested at 20% a year, compounded yearly, for 2 years. The amount is ₹
Answer: 52992
More ways to practise compound interest for 2 years
- Printable compound interest for 2 years worksheet with an answer key (new questions every time)
- All Grade 8 practice · Percentage worksheets
Related skills
- Percentage increase and decrease (Grade 7)
- Profit and loss (Grade 7)
- Simple interest (Grade 7)
- Discounts word problems (Grade 7)
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FAQ
Compound interest for 2 years: questions
What grade is compound interest for 2 years?
It is usually taught in Grade 8 (Year 9 in England, Class 8 in India, ages 13–14), though schools and countries differ. Try the grade above or below if it feels too hard or too easy.
What does a compound interest for 2 years question look like?
For example: "₹10,000 is invested at 20% a year, compounded yearly, for 2 years. The amount is ₹" The answer is 14400. Multiply by (100 + rate) ÷ 100 once for each year. The second year earns interest on the first year's interest too.
What should I learn before and after compound interest for 2 years?
Before it, try discounts word problems (Grade 7). After it, move on to slope between two points (Grade 8).
How can I get better at compound interest for 2 years?
Multiply by (100 + rate) ÷ 100 once for each year. The second year earns interest on the first year's interest too. Practise a little every day, read the hint after each wrong answer, and use the printable worksheet when you want to write it out.
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