FreeMath
Grade 6medium

Square Roots of Perfect Squares Practice

Practice finding square roots of perfect squares. The square root undoes squaring: if 5² = 25, then √25 = 5.

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All 20 Practice Problems

Every question in this set. Solve them on paper, or use the interactive tool above for instant feedback and hints.

  1. 1.√4 = ?
  2. 2.√9 = ?
  3. 3.√16 = ?
  4. 4.√25 = ?
  5. 5.√36 = ?
  6. 6.√49 = ?
  7. 7.√64 = ?
  8. 8.√81 = ?
  9. 9.√100 = ?
  10. 10.√121 = ?
  11. 11.√144 = ?
  12. 12.√169 = ?
  13. 13.√196 = ?
  14. 14.√225 = ?
  15. 15.√1 = ?
  16. 16.√256 = ?
  17. 17.√289 = ?
  18. 18.√324 = ?
  19. 19.√361 = ?
  20. 20.√400 = ?
Show answer key
  1. 1.√4 = ? Answer: 2
  2. 2.√9 = ? Answer: 3
  3. 3.√16 = ? Answer: 4
  4. 4.√25 = ? Answer: 5
  5. 5.√36 = ? Answer: 6
  6. 6.√49 = ? Answer: 7
  7. 7.√64 = ? Answer: 8
  8. 8.√81 = ? Answer: 9
  9. 9.√100 = ? Answer: 10
  10. 10.√121 = ? Answer: 11
  11. 11.√144 = ? Answer: 12
  12. 12.√169 = ? Answer: 13
  13. 13.√196 = ? Answer: 14
  14. 14.√225 = ? Answer: 15
  15. 15.√1 = ? Answer: 1
  16. 16.√256 = ? Answer: 16
  17. 17.√289 = ? Answer: 17
  18. 18.√324 = ? Answer: 18
  19. 19.√361 = ? Answer: 19
  20. 20.√400 = ? Answer: 20

About This Practice

This practice set includes 20 perfect square root problems from √1 to √400. Memorizing these helps with estimation and quick mental calculations.

Want more practice? See all Grade 6 practice →