Percentages Practice Problems
Grades 5-8 · 5 problems
Practice your percentage skills with these problems. Get instant feedback and step-by-step solutions to improve your understanding.
Tip: Remember that a percentage is a ratio out of 100. To convert a percentage to a decimal, divide by 100.
1
What is 50% of 80?
2
What is 25% of 120?
3
If a shirt costs $20 and is on sale for 20% off, what is the sale price?
4
A store marks up a product by 40% of its cost. If the store bought the product for $50, what is the selling price?
5
A population of bacteria increases by 5% every hour. If the initial population is 1000, what will the population be after 3 hours (round to the nearest whole number)?
Common Mistakes
- Forgetting to convert the percentage to a decimal or fraction before multiplying.
- Calculating the percentage of the wrong number.
- Not reading the question carefully and answering for the percentage instead of the final value.