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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. 43 + 20 = ______
  2. 48 + 10 = ______
  3. 50 + 20 = ______
  4. 18 + 10 = ______
  5. 65 + 10 = ______
  6. 37 + 20 = ______
  7. 63 + 20 = ______
  8. 1 × 10 = ______
  9. 81 − 10 = ______
  10. 47 + 20 = ______
  11. 54 + 10 = ______
  12. 66 − 10 = ______
  13. 38 + 20 = ______
  14. 70 + 20 = ______
  15. 42 + 10 = ______
  16. 72 − 10 = ______
  17. 15 + 10 = ______
  18. 14 + 20 = ______
  19. 51 + 10 = ______
  20. 8 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath