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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. 79 − 10 = ______
  2. 46 + 20 = ______
  3. 77 + 20 = ______
  4. 40 + 20 = ______
  5. 75 + 20 = ______
  6. 75 − 10 = ______
  7. 44 + 20 = ______
  8. 89 + 10 = ______
  9. 80 − 10 = ______
  10. 4 × 10 = ______
  11. 46 + 10 = ______
  12. 71 + 10 = ______
  13. 61 − 10 = ______
  14. 61 + 10 = ______
  15. 52 − 10 = ______
  16. 11 + 20 = ______
  17. 34 + 20 = ______
  18. 60 + 10 = ______
  19. 35 + 10 = ______
  20. 1 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath