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. $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
2. $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
3. $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
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. $100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 50% · 2 · 2 · Compound interest & growth
6. $1200 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1200 · 10% · 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. $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
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. $1500 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1500 · 10% · 2 · 2 · Compound interest & growth
11. $500 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$500 · 30% · 2 · 2 · Compound interest & growth
12. $400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$400 · 50% · 2 · 2 · Compound interest & growth

12 questions · Seed 47 · 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. $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.
2. $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.
3. $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.
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. $100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$225
Value = $100 × (1 + 50/100)² = $225.
6. $1200 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1452
Value = $1200 × (1 + 10/100)² = $1452.
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. $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.
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. $1500 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1815
Value = $1500 × (1 + 10/100)² = $1815.
11. $500 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$845
Value = $500 × (1 + 30/100)² = $845.
12. $400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900
Value = $400 × (1 + 50/100)² = $900.

12 questions · Seed 47 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $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
2. $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
3. $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
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. $100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 50% · 2 · 2 · Compound interest & growth
6. $1200 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1200 · 10% · 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. $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
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. $1500 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1500 · 10% · 2 · 2 · Compound interest & growth
11. $500 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$500 · 30% · 2 · 2 · Compound interest & growth
12. $400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$400 · 50% · 2 · 2 · Compound interest & growth

12 questions · Seed 47 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Compound interest & growth

Answers and reasoning. Review before teaching.

1. $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.
2. $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.
3. $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.
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. $100 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$225
Value = $100 × (1 + 50/100)² = $225.
6. $1200 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1452
Value = $1200 × (1 + 10/100)² = $1452.
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. $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.
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. $1500 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1815
Value = $1500 × (1 + 10/100)² = $1815.
11. $500 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$845
Value = $500 × (1 + 30/100)² = $845.
12. $400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900
Value = $400 × (1 + 50/100)² = $900.

12 questions · Seed 47 · Age guidance, not curriculum certification