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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. 66 − 10 = ______
  2. 5 × 10 = ______
  3. 72 + 20 = ______
  4. 45 + 20 = ______
  5. 53 − 10 = ______
  6. 50 + 20 = ______
  7. 29 + 10 = ______
  8. 11 + 20 = ______
  9. 2 × 10 = ______
  10. 75 + 10 = ______
  11. 12 + 20 = ______
  12. 4 × 10 = ______
  13. 27 + 20 = ______
  14. 69 − 10 = ______
  15. 81 + 10 = ______
  16. 69 + 20 = ______
  17. 66 + 10 = ______
  18. 64 + 20 = ______
  19. 56 + 20 = ______
  20. 70 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath