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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. 24 + 10 = ______
  2. 39 − 10 = ______
  3. 89 + 10 = ______
  4. 1 × 10 = ______
  5. 88 − 10 = ______
  6. 86 + 10 = ______
  7. 45 + 20 = ______
  8. 3 × 10 = ______
  9. 49 + 10 = ______
  10. 40 + 10 = ______
  11. 6 × 10 = ______
  12. 15 + 10 = ______
  13. 14 + 20 = ______
  14. 41 + 10 = ______
  15. 66 + 20 = ______
  16. 15 + 20 = ______
  17. 5 × 10 = ______
  18. 30 + 20 = ______
  19. 36 + 20 = ______
  20. 73 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath