Resources/Percents practice: conversions and percent of a number
Grades 6-7•Printable worksheet + answer key•CC0 license

Percents practice: conversions and percent of a number

A printable lesson focused on percent conversions and percent-of problems.

Students learn to move between percent, decimal, and fraction forms and solve real-world percent questions.

Print-ready worksheet with answer key and quick teaching tips.

Grades 6-70 problems10 minAnswer key included
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Ready-to-teach

Clear steps, examples, and practice in one printable page.

Misconception-proof

Highlights common mistakes and how to fix them quickly.

Open license

CC0: free to copy, adapt, and share without attribution.

Quick overview

This free percents worksheet for grades 6-7 covers percent conversions and percent-of problems.

Lesson plan snapshot

15-20 min
  • Warm-up (3 min): percent-to-decimal flash review.
  • Model (5 min): solve the worked example together.
  • Guided practice (5 min): complete problems 1-3 as a group.
  • Independent practice (7 min): finish the remaining problems.

Materials: percent bar, pencil

Learning targets

  • Convert between percent, decimal, and fraction forms.
  • Find a percent of a whole number.
  • Calculate simple percent change.

Step-by-step approach

  1. 1Convert percent to decimal by moving the decimal two places left.
  2. 2Multiply the decimal by the whole to find the part.
  3. 3For percent change, divide the difference by the original amount.
  4. 4Check if the answer is reasonable (percent of a number should be smaller unless over 100%).

Common mistakes

Mistake

Using 35% as 35 instead of 0.35.

Try instead

Always divide by 100 to convert percent to decimal.

Mistake

Using the new value instead of the original for percent change.

Try instead

Percent change uses the original amount in the denominator.

Mistake

Misplacing the decimal when converting.

Try instead

Say the percent out loud: 35% means 35 out of 100.

Worked example

Guided
Find 35% of 80.
  1. Convert 35% to decimal: 0.35.
  2. Multiply: 0.35 × 80 = 28.
  3. So 35% of 80 is 28.
Answer: 28

Related resources

Percent change

Percent increase and decrease with real-world examples.

View resource

Ratios

Unit rates and proportional reasoning practice.

View resource

Decimals

Decimal comparison and operations practice.

View resource

Practice problems

16 problems • 24 min

Printable worksheet
  1. 1
    Convert 0.20.2 to a percent.
  2. 2
    Find the percent: 75 is what percent of 100?
  3. 3
    Convert 0.050.05 to a percent.
  4. 4
    Convert 20% to a decimal.
  5. 5
    Find 12% of 75.
  6. 6
    Convert 12\frac{1}{2} to a percent.
  7. 7
    Convert 0.250.25 to a percent.
  8. 8
    Convert 5% to a decimal.
  9. 9
    Find 60% of 90.
  10. 10
    Convert 60% to a decimal.
  11. 11
    Find the percent: 72 is what percent of 240?
  12. 12
    Find 15% of 100.
  13. 13
    Convert 0.50.5 to a percent.
  14. 14
    Convert 50% to a decimal.
  15. 15
    Find the percent: 100 is what percent of 200?
  16. 16
    Find 10% of 150.

Answer key

16 answers
  1. 11) 20%
  2. 22) 75%
  3. 33) 5%
  4. 44) 0.2
  5. 55) 9
  6. 66) 50%
  7. 77) 25%
  8. 88) 0.05
  9. 99) 54
  10. 1010) 0.6
  11. 1111) 30%
  12. 1212) 15
  13. 1313) 50%
  14. 1414) 0.5
  15. 1515) 50%
  16. 1616) 15

Teacher tips

  • TUse percent bars or double number lines to show relationships.
  • TConnect percents to fractions of 100 and money examples.
  • THave students estimate to check whether the percent result is reasonable.

Parent tips

  • PUse discounts while shopping to talk about percents.
  • PPractice 10%, 25%, and 50% mentally for quick wins.
  • PAsk your child to explain what the percent means in words.

Open license

You are free to copy, adapt, and share these materials. No attribution required. Released under Creative Commons CC0 1.0 (public domain).