Exponential Growth and Decay Worksheets
Use explicitly stated exponential and logarithmic models and interpret their parameters.
Before you begin
Evaluate functions, solve for variables and use exponential/logarithmic inverses.
Worked example
A population model starts at 3000 and increases by 10% each year. Find its modeled value after 3 years. Do not round.
- Use the annual multiplier 1.1.
- Multiply the initial value by this multiplier raised to 3.
Answer: 3993
Check your result using the method in the example before moving to the next question.
Choose your level
These sets use the same exercise types and number ranges across level labels. Choose a fresh set for additional practice.
- Easy: Start with the preview and follow the worked example.
- Medium: Practice the same exercise types with a fresh numbered set.
- Hard: Use another set to practice explaining and checking your answers.
Questions and answer calculations checked on 2026-09-17. How we check worksheets. Free for personal and classroom use.
Preview and print an easy set
Try six questions below, or choose a full set at your level.
1
A population model starts at 6000 and increases by 10% each year. Find its modeled value after 2 years. Do not round.
2
A population model starts at 4000 and decreases by 10% each year. Find its modeled value after 1 years. Do not round.
3
A population model starts at 1000 and increases by 10% each year. Find its modeled value after 3 years. Do not round.
4
A population model starts at 5000 and decreases by 10% each year. Find its modeled value after 2 years. Do not round.
5
A population model starts at 3000 and increases by 10% each year. Find its modeled value after 4 years. Do not round.
6
A population model starts at 4000 and decreases by 10% each year. Find its modeled value after 4 years. Do not round.
Answer Key
1. 72602. 36003. 13314. 40505. 43923/106. 13122/5