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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. 86 + 10 = ______
  2. 1 × 10 = ______
  3. 77 + 10 = ______
  4. 8 × 10 = ______
  5. 3 × 10 = ______
  6. 89 + 10 = ______
  7. 44 + 10 = ______
  8. 68 + 10 = ______
  9. 40 + 20 = ______
  10. 43 + 20 = ______
  11. 16 + 20 = ______
  12. 65 − 10 = ______
  13. 68 + 20 = ______
  14. 4 × 10 = ______
  15. 56 + 10 = ______
  16. 23 + 10 = ______
  17. 37 + 20 = ______
  18. 63 + 10 = ______
  19. 69 + 20 = ______
  20. 15 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath