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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. 65 + 10 = ______
  2. 22 + 20 = ______
  3. 35 + 20 = ______
  4. 40 − 10 = ______
  5. 20 + 20 = ______
  6. 70 − 10 = ______
  7. 6 × 10 = ______
  8. 57 − 10 = ______
  9. 27 + 20 = ______
  10. 2 × 10 = ______
  11. 89 + 20 = ______
  12. 61 − 10 = ______
  13. 39 + 20 = ______
  14. 44 − 10 = ______
  15. 79 − 10 = ______
  16. 41 + 10 = ______
  17. 26 − 10 = ______
  18. 50 + 20 = ______
  19. 66 + 20 = ______
  20. 24 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath