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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. 5 × 10 = ______
  2. 45 + 20 = ______
  3. 17 + 10 = ______
  4. 78 + 10 = ______
  5. 25 − 10 = ______
  6. 26 + 10 = ______
  7. 32 + 10 = ______
  8. 34 + 10 = ______
  9. 80 + 20 = ______
  10. 83 + 20 = ______
  11. 71 − 10 = ______
  12. 51 + 20 = ______
  13. 64 + 20 = ______
  14. 38 − 10 = ______
  15. 16 + 20 = ______
  16. 4 × 10 = ______
  17. 6 × 10 = ______
  18. 50 − 10 = ______
  19. 86 + 20 = ______
  20. 76 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath