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. 69 − 10 = ______
  2. 2 × 10 = ______
  3. 20 + 10 = ______
  4. 49 − 10 = ______
  5. 94 − 10 = ______
  6. 24 + 20 = ______
  7. 1 × 10 = ______
  8. 46 − 10 = ______
  9. 5 × 10 = ______
  10. 68 + 10 = ______
  11. 85 + 20 = ______
  12. 73 + 10 = ______
  13. 75 + 10 = ______
  14. 22 + 20 = ______
  15. 82 − 10 = ______
  16. 65 − 10 = ______
  17. 36 − 10 = ______
  18. 28 − 10 = ______
  19. 66 + 20 = ______
  20. 76 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath