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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. 45 + 10 = ______
  2. 7 × 10 = ______
  3. 1 × 10 = ______
  4. 15 + 20 = ______
  5. 3 × 10 = ______
  6. 25 + 10 = ______
  7. 19 + 10 = ______
  8. 82 + 10 = ______
  9. 76 + 20 = ______
  10. 22 + 20 = ______
  11. 26 + 10 = ______
  12. 60 − 10 = ______
  13. 31 − 10 = ______
  14. 11 + 20 = ______
  15. 13 + 10 = ______
  16. 9 × 10 = ______
  17. 54 − 10 = ______
  18. 21 + 20 = ______
  19. 2 × 10 = ______
  20. 48 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath