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Mental Math Worksheet

Recommended for 1st Grade — 5th Grade

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Mental Math Worksheet

Name: ____________________Date: ____________

Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.

20 problems

  1. 39 + 20 = ______
  2. 1 × 10 = ______
  3. 68 − 10 = ______
  4. 31 + 10 = ______
  5. 37 + 20 = ______
  6. 11 + 10 = ______
  7. 24 − 10 = ______
  8. 4 × 10 = ______
  9. 5 × 10 = ______
  10. 82 + 20 = ______
  11. 44 + 10 = ______
  12. 28 − 10 = ______
  13. 44 − 10 = ______
  14. 47 + 10 = ______
  15. 2 × 10 = ______
  16. 61 + 10 = ______
  17. 33 + 20 = ______
  18. 54 − 10 = ______
  19. 82 + 10 = ______
  20. 85 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath