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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. 20 + 10 = ______
  2. 77 + 10 = ______
  3. 37 − 10 = ______
  4. 51 − 10 = ______
  5. 46 + 10 = ______
  6. 2 × 10 = ______
  7. 53 + 20 = ______
  8. 57 + 10 = ______
  9. 6 × 10 = ______
  10. 3 × 10 = ______
  11. 4 × 10 = ______
  12. 17 + 10 = ______
  13. 86 + 20 = ______
  14. 41 + 10 = ______
  15. 42 + 10 = ______
  16. 47 + 20 = ______
  17. 82 + 10 = ______
  18. 9 × 10 = ______
  19. 38 + 10 = ______
  20. 50 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath