Grade 8 Percents Worksheets
Free printable percents practice for Grade 8 students. Generate problems, solve them on screen or paper, and download as PDF.
Practice Worksheet
Grade 8 Percents Practice
Solve each problem. Show your work.
- 1.Increase 75 by 10%: _____
- 2.Increase 175 by 30%: _____
- 3.Increase 170 by 75%: _____
- 4.Increase 170 by 50%: _____
- 5.Increase 180 by 10%: _____
- 6.Increase 100 by 20%: _____
Show answer key
- Question 1: 82.5
- Question 2: 227.5
- Question 3: 297.5
- Question 4: 255
- Question 5: 198
- Question 6: 120
Free Practice Worksheets
Print, solve on paper, then upload a photo for AI feedback and feedback.
Build confidence with approachable problems
Solve each problem. Take your time.
- 1.Calculate 15% of 80.
- 2.Convert the fraction 3/8 into a percent.
- 3.Find the result of a 20% increase on the number 50.
- 4.Calculate the final value after a 10% decrease on the number 40.
- 5.Find the total cost of an item priced at 200 with an 8% sales tax added.
- 6.Convert the decimal 0.045 into a percent.
A selection of topic skills
Solve each problem. Show your work.
- 1.Convert the following values into a common format (percent) and order them from least to greatest: 0.65, 3/4, 68%, and 0.6.
- 2.Calculate the final price of an item that costs 85.00 dollars if it is on sale for 25% off and there is a 6% sales tax applied to the discounted price.
- 3.A cylinder has a volume of 500 cubic cm. If the volume increases by 15%, what is the new volume of the cylinder?
- 4.A line segment on a coordinate plane has a length of 12 units. After a dilation, the new length is 18 units. What is the percent increase in the length of the line segment?
- 5.In a scatter plot of data, 40% of the 80 points fall above the line of best fit. How many points fall below the line of best fit if 5% of the points lie exactly on the line?
- 6.A right triangle has legs of 6 cm and 8 cm. If the hypotenuse is increased by 20% in length, what is the new length of the hypotenuse?
Practise specific Percents skills
Skill map
How percents skills connect
Shore up what feeds in, work through the core skills in order, then move on to what they unlock. A means the skill has an instant answer checker.
Build up first
Core skills — in order
What Your Child Will Learn
Grade 8 percent work emphasizes multi-step percent change problems and their application to financial literacy and algebra. Students calculate successive percent changes (a price that increases 10% then decreases 10%) and recognize that these do not cancel out — a common misconception this grade specifically addresses.
Students connect percent to linear relationships, expressing percent change as a rate, and solve problems involving compound interest at an introductory level. Percent also appears in data interpretation, such as analyzing percent change in graphs and statistics. By the end of Grade 8, students should confidently apply percent reasoning within complex, multi-step, real-world problems.
Skills Covered
- Solving successive percent change problems
- Distinguishing between simple and compound percent change
- Introductory compound interest calculations
- Expressing percent change as a rate within linear contexts
- Interpreting percent change in graphs and data
- Solving multi-step financial literacy problems involving percent
Curriculum Aligned: Aligned with Strand B (Number) and Strand C (Algebra): applying percent change to financial literacy and linear relationships.
Parent Tip: Challenge a common misconception directly: ask your child whether a 10% increase followed by a 10% decrease gets back to the original price. Working it out together reveals why it doesn't.
What your child will practice
- Fractions, Decimals, PercentsConvert fluently between fractions, decimals, and percents.
- Percent ApplicationsSolve problems involving percent increase, decrease, simple interest, and commissions.
Want Personalized Percents Practice?
Create a free family account for one personalized worksheet and one homework check, with saved work and progress for every learner. Premium unlocks unlimited AI practice and homework checks.
Create a Free AccountFinished the worksheet? Review it with AI feedback
Snap a photo of your child's completed Grade 8 percents work and review AI feedback on the answers and steps it can read.
Check my workFrequently Asked Questions
How do percents relate to fractions and decimals?
Percent means 'per hundred.' So 25% = 25/100 = 0.25. Understanding this three-way connection between percents, fractions, and decimals is fundamental to mastering percentages.
What real-life situations use percents?
Percents are everywhere: sales tax, discounts, tips at restaurants, interest rates, sports statistics, and grades. Using these real-world examples makes learning percents meaningful and practical.
When do students learn percent calculations?
Percent concepts are introduced in Grade 5-6. By Grade 7-8, students should handle percent increase/decrease, and by Grade 9-10 they work with compound interest and financial literacy applications.