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. 84 + 20 = ______
  2. 29 + 20 = ______
  3. 38 + 20 = ______
  4. 74 + 20 = ______
  5. 55 + 10 = ______
  6. 56 + 20 = ______
  7. 48 + 20 = ______
  8. 6 × 10 = ______
  9. 3 × 10 = ______
  10. 72 + 20 = ______
  11. 2 × 10 = ______
  12. 8 × 10 = ______
  13. 81 + 20 = ______
  14. 7 × 10 = ______
  15. 36 + 10 = ______
  16. 28 + 20 = ______
  17. 76 + 10 = ______
  18. 65 − 10 = ______
  19. 83 + 20 = ______
  20. 59 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath