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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. 5 × 10 = ______
  2. 1 × 10 = ______
  3. 45 + 10 = ______
  4. 2 × 10 = ______
  5. 44 + 10 = ______
  6. 29 + 20 = ______
  7. 49 + 20 = ______
  8. 72 + 20 = ______
  9. 39 − 10 = ______
  10. 9 × 10 = ______
  11. 93 − 10 = ______
  12. 21 + 10 = ______
  13. 96 − 10 = ______
  14. 38 + 20 = ______
  15. 61 + 10 = ______
  16. 56 − 10 = ______
  17. 7 × 10 = ______
  18. 88 + 20 = ______
  19. 45 + 20 = ______
  20. 66 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath