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. $800 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$800 · 20% · 2 · 2 · Compound interest & growth
2. $200 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$200 · 20% · 2 · 2 · Compound interest & growth
3. $900 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 50% · 2 · 2 · Compound interest & growth
4. $900 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 20% · 2 · 2 · Compound interest & growth
5. $1500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1500 · 50% · 2 · 2 · Compound interest & growth
6. $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
7. $100 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 10% · 2 · 2 · Compound interest & growth
8. $1000 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 30% · 2 · 2 · Compound interest & growth
9. $1400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1400 · 50% · 2 · 2 · Compound interest & growth
10. $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
11. $1200 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1200 · 30% · 2 · 2 · Compound interest & growth
12. $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

12 questions · Seed 104733 · 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. $800 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1152
Value = $800 × (1 + 20/100)² = $1152.
2. $200 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$288
Value = $200 × (1 + 20/100)² = $288.
3. $900 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2025
Value = $900 × (1 + 50/100)² = $2025.
4. $900 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1296
Value = $900 × (1 + 20/100)² = $1296.
5. $1500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$3375
Value = $1500 × (1 + 50/100)² = $3375.
6. $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.
7. $100 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$121
Value = $100 × (1 + 10/100)² = $121.
8. $1000 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1690
Value = $1000 × (1 + 30/100)² = $1690.
9. $1400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$3150
Value = $1400 × (1 + 50/100)² = $3150.
10. $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.
11. $1200 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2028
Value = $1200 × (1 + 30/100)² = $2028.
12. $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.

12 questions · Seed 104733 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Compound interest & growth

Take your time. Show your thinking.

1. $800 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$800 · 20% · 2 · 2 · Compound interest & growth
2. $200 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$200 · 20% · 2 · 2 · Compound interest & growth
3. $900 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 50% · 2 · 2 · Compound interest & growth
4. $900 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$900 · 20% · 2 · 2 · Compound interest & growth
5. $1500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1500 · 50% · 2 · 2 · Compound interest & growth
6. $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
7. $100 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$100 · 10% · 2 · 2 · Compound interest & growth
8. $1000 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1000 · 30% · 2 · 2 · Compound interest & growth
9. $1400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1400 · 50% · 2 · 2 · Compound interest & growth
10. $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
11. $1200 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1200 · 30% · 2 · 2 · Compound interest & growth
12. $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

12 questions · Seed 104733 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Compound interest & growth

Answers and reasoning. Review before teaching.

1. $800 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1152
Value = $800 × (1 + 20/100)² = $1152.
2. $200 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$288
Value = $200 × (1 + 20/100)² = $288.
3. $900 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2025
Value = $900 × (1 + 50/100)² = $2025.
4. $900 is invested at 20% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1296
Value = $900 × (1 + 20/100)² = $1296.
5. $1500 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$3375
Value = $1500 × (1 + 50/100)² = $3375.
6. $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.
7. $100 is invested at 10% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$121
Value = $100 × (1 + 10/100)² = $121.
8. $1000 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$1690
Value = $1000 × (1 + 30/100)² = $1690.
9. $1400 is invested at 50% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$3150
Value = $1400 × (1 + 50/100)² = $3150.
10. $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.
11. $1200 is invested at 30% compound interest per year, compounded annually for 2 years. What is the total value after 2 years?
$2028
Value = $1200 × (1 + 30/100)² = $2028.
12. $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.

12 questions · Seed 104733 · Age guidance, not curriculum certification