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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. 61 + 20 = ______
  2. 78 − 10 = ______
  3. 33 − 10 = ______
  4. 1 × 10 = ______
  5. 68 + 10 = ______
  6. 41 − 10 = ______
  7. 57 + 10 = ______
  8. 74 − 10 = ______
  9. 40 + 20 = ______
  10. 58 − 10 = ______
  11. 24 + 10 = ______
  12. 63 + 10 = ______
  13. 48 − 10 = ______
  14. 54 + 10 = ______
  15. 2 × 10 = ______
  16. 33 + 20 = ______
  17. 4 × 10 = ______
  18. 40 − 10 = ______
  19. 46 + 20 = ______
  20. 83 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath