WaffleMath LogoWaffleMath
K12345678HSBrowse standardsBrowse worksheetsTeacher resources

Mental Math Worksheet

Recommended for 1st Grade — 5th Grade

More Mental Math GamesAll Worksheets
New Worksheet

Mental Math Worksheet

Name: ____________________Date: ____________

Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.

20 problems

  1. 62 + 20 = ______
  2. 43 + 10 = ______
  3. 75 − 10 = ______
  4. 35 + 20 = ______
  5. 33 + 20 = ______
  6. 72 + 20 = ______
  7. 78 − 10 = ______
  8. 51 + 20 = ______
  9. 3 × 10 = ______
  10. 82 + 20 = ______
  11. 45 + 20 = ______
  12. 76 + 20 = ______
  13. 39 + 10 = ______
  14. 60 + 10 = ______
  15. 4 × 10 = ______
  16. 36 + 10 = ______
  17. 58 + 20 = ______
  18. 89 + 20 = ______
  19. 29 − 10 = ______
  20. 62 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath