6th Grade Math · Percent of a Quantity
Percent of a number Worksheets
Fresh practice, ready to print. Answer key included.
Problems such as 25% of 80, with a whole-number answer.
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Or start with a ready-made version.
How it works: a quick refresher
The rules this worksheet practices, then one problem worked from start to finish.
| Strategy | How it works |
|---|---|
| 10% is one tenth | Move the decimal one place, or divide by 10. 10% of 80 is 8. |
| 5% is half of 10% | Find 10%, then take half. 5% of 80 is half of 8, which is 4. |
| 25%, 50%, and 75% are quarters | 50% is half, 25% is a quarter, and 75% is three quarters. 25% of 80 = 80 ÷ 4 = 20. |
| 20% is one fifth | Divide by 5. 20% of 45 would be 9, and 20% of 80 is 16. |
| A percent is an amount out of 100 | 10 out of 40 is 10 ÷ 40 = 1/4 = 25%. The answer is written 25%, not 25. |
| Work backward for the whole | If 15 is 25% of the number, 15 is one quarter of it, so the number is 15 × 4 = 60. |
Worked example
Find 25% of 80.
- 125% is the same as 1/4.
- 2Divide 80 by 4.
- 380 ÷ 4 = 20.
- 4Check: 20 out of 80 is 1/4, which is 25%.
Ready-made versions
Three fixed versions you can link to or share. Each is a PDF with its own answer key.
- Percent of a number Worksheets, version 1Worksheet PDFAnswer key PDF
- Percent of a number Worksheets, version 2Worksheet PDFAnswer key PDF
- Percent of a number Worksheets, version 3Worksheet PDFAnswer key PDF
Grade level and standard
Written for 6th grade math (ratios) and aligned to CCSS 6.RP.A.3. It also works as review in later grades.
Common questions
- Is there an answer key?
- Yes. Every worksheet has a matching answer key with each answer worked on the same grid or layout as the question. The worksheet ID printed at the bottom of each page pairs a sheet with its key.
- Why do some answers have a percent sign and others do not?
- When the question asks for a percent, the answer is written with the sign, such as 25%. When the question asks for a number of things, the answer is just that number.
- Will any of these need a decimal or a fraction in the answer?
- No. The numbers were chosen so every part, percent, and whole comes out as a whole number.
- How many different versions are there?
- About a million per skill. Each time you press the button the problems are generated fresh, so you can print a different version for every student, a retake, or another night of practice.
- Are the worksheets free?
- Yes. They are free to print and copy for your home or classroom, with no sign-up.