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.

New variation Try interactive challenge Browse templates

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $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
2. $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
3. $900 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 30% · 2 · 2 · Compound interest & growth
4. $1100 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 20% · 2 · 2 · Compound interest & growth
5. $500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$500 · 50% · 2 · 2 · Compound interest & growth
6. $1400 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1400 · 30% · 2 · 2 · Compound interest & growth
7. $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
8. $800 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$800 · 30% · 2 · 2 · Compound interest & growth
9. $100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 30% · 2 · 2 · Compound interest & growth
10. $300 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 10% · 2 · 2 · Compound interest & growth
11. $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
12. $1100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 50% · 2 · 2 · Compound interest & growth

12 questions · Seed 44 · 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. $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.
2. $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.
3. $900 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1521
Value = $900 × (1 + 30/100)² = $1521.
4. $1100 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1584
Value = $1100 × (1 + 20/100)² = $1584.
5. $500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1125
Value = $500 × (1 + 50/100)² = $1125.
6. $1400 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2366
Value = $1400 × (1 + 30/100)² = $2366.
7. $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.
8. $800 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1352
Value = $800 × (1 + 30/100)² = $1352.
9. $100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$169
Value = $100 × (1 + 30/100)² = $169.
10. $300 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$363
Value = $300 × (1 + 10/100)² = $363.
11. $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.
12. $1100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2475
Value = $1100 × (1 + 50/100)² = $2475.

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $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
2. $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
3. $900 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 30% · 2 · 2 · Compound interest & growth
4. $1100 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 20% · 2 · 2 · Compound interest & growth
5. $500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$500 · 50% · 2 · 2 · Compound interest & growth
6. $1400 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1400 · 30% · 2 · 2 · Compound interest & growth
7. $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
8. $800 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$800 · 30% · 2 · 2 · Compound interest & growth
9. $100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 30% · 2 · 2 · Compound interest & growth
10. $300 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$300 · 10% · 2 · 2 · Compound interest & growth
11. $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
12. $1100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1100 · 50% · 2 · 2 · Compound interest & growth

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Compound interest & growth

Answers and reasoning. Review before teaching.

1. $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.
2. $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.
3. $900 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1521
Value = $900 × (1 + 30/100)² = $1521.
4. $1100 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1584
Value = $1100 × (1 + 20/100)² = $1584.
5. $500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1125
Value = $500 × (1 + 50/100)² = $1125.
6. $1400 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2366
Value = $1400 × (1 + 30/100)² = $2366.
7. $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.
8. $800 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1352
Value = $800 × (1 + 30/100)² = $1352.
9. $100 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$169
Value = $100 × (1 + 30/100)² = $169.
10. $300 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$363
Value = $300 × (1 + 10/100)² = $363.
11. $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.
12. $1100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2475
Value = $1100 × (1 + 50/100)² = $2475.

12 questions · Seed 44 · Age guidance, not curriculum certification