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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. 70 + 10 = ______
  2. 43 + 20 = ______
  3. 78 + 10 = ______
  4. 85 + 20 = ______
  5. 48 + 10 = ______
  6. 32 + 20 = ______
  7. 57 + 10 = ______
  8. 86 + 10 = ______
  9. 55 + 10 = ______
  10. 84 + 20 = ______
  11. 3 × 10 = ______
  12. 51 + 10 = ______
  13. 52 + 20 = ______
  14. 57 − 10 = ______
  15. 33 + 20 = ______
  16. 31 + 20 = ______
  17. 8 × 10 = ______
  18. 53 + 20 = ______
  19. 25 + 20 = ______
  20. 68 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath