Time & moneyAges 16-18

Compound interest & growth

Calculate the compounded value of an investment over two annual compounding periods. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 50% · 2 · 2 · Compound interest & growth
2. $1100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 30% · 2 · 2 · Compound interest & growth
3. $600 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 50% · 2 · 2 · Compound interest & growth
4. $1300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1300 · 30% · 2 · 2 · Compound interest & growth
5. $1300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1300 · 50% · 2 · 2 · Compound interest & growth
6. $600 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 10% · 2 · 2 · Compound interest & growth
7. $600 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 20% · 2 · 2 · Compound interest & growth
8. $700 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$700 · 50% · 2 · 2 · Compound interest & growth
9. $1000 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 50% · 2 · 2 · Compound interest & growth
10. $300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 30% · 2 · 2 · Compound interest & growth
11. $1000 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 10% · 2 · 2 · Compound interest & growth
12. $900 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 10% · 2 · 2 · Compound interest & growth

12 questions · Seed 104732 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

Compound interest & growth

Answers and reasoning. Review before teaching.

1. $300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$675
Value = $300 × (1 + 50/100)² = $675.
2. $1100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1859
Value = $1100 × (1 + 30/100)² = $1859.
3. $600 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1350
Value = $600 × (1 + 50/100)² = $1350.
4. $1300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2197
Value = $1300 × (1 + 30/100)² = $2197.
5. $1300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2925
Value = $1300 × (1 + 50/100)² = $2925.
6. $600 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$726
Value = $600 × (1 + 10/100)² = $726.
7. $600 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$864
Value = $600 × (1 + 20/100)² = $864.
8. $700 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1575
Value = $700 × (1 + 50/100)² = $1575.
9. $1000 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2250
Value = $1000 × (1 + 50/100)² = $2250.
10. $300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$507
Value = $300 × (1 + 30/100)² = $507.
11. $1000 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1210
Value = $1000 × (1 + 10/100)² = $1210.
12. $900 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1089
Value = $900 × (1 + 10/100)² = $1089.

12 questions · Seed 104732 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 50% · 2 · 2 · Compound interest & growth
2. $1100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 30% · 2 · 2 · Compound interest & growth
3. $600 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 50% · 2 · 2 · Compound interest & growth
4. $1300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1300 · 30% · 2 · 2 · Compound interest & growth
5. $1300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1300 · 50% · 2 · 2 · Compound interest & growth
6. $600 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 10% · 2 · 2 · Compound interest & growth
7. $600 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$600 · 20% · 2 · 2 · Compound interest & growth
8. $700 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$700 · 50% · 2 · 2 · Compound interest & growth
9. $1000 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 50% · 2 · 2 · Compound interest & growth
10. $300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 30% · 2 · 2 · Compound interest & growth
11. $1000 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 10% · 2 · 2 · Compound interest & growth
12. $900 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 10% · 2 · 2 · Compound interest & growth

12 questions · Seed 104732 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Compound interest & growth

Answers and reasoning. Review before teaching.

1. $300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$675
Value = $300 × (1 + 50/100)² = $675.
2. $1100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1859
Value = $1100 × (1 + 30/100)² = $1859.
3. $600 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1350
Value = $600 × (1 + 50/100)² = $1350.
4. $1300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2197
Value = $1300 × (1 + 30/100)² = $2197.
5. $1300 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2925
Value = $1300 × (1 + 50/100)² = $2925.
6. $600 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$726
Value = $600 × (1 + 10/100)² = $726.
7. $600 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$864
Value = $600 × (1 + 20/100)² = $864.
8. $700 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1575
Value = $700 × (1 + 50/100)² = $1575.
9. $1000 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2250
Value = $1000 × (1 + 50/100)² = $2250.
10. $300 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$507
Value = $300 × (1 + 30/100)² = $507.
11. $1000 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1210
Value = $1000 × (1 + 10/100)² = $1210.
12. $900 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1089
Value = $900 × (1 + 10/100)² = $1089.

12 questions · Seed 104732 · Age guidance, not curriculum certification