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. 18 + 10 = ______
  2. 4 × 10 = ______
  3. 46 + 20 = ______
  4. 9 × 10 = ______
  5. 25 − 10 = ______
  6. 86 + 20 = ______
  7. 68 − 10 = ______
  8. 7 × 10 = ______
  9. 2 × 10 = ______
  10. 89 + 20 = ______
  11. 89 − 10 = ______
  12. 1 × 10 = ______
  13. 77 + 20 = ______
  14. 74 + 20 = ______
  15. 32 − 10 = ______
  16. 60 − 10 = ______
  17. 6 × 10 = ______
  18. 49 + 20 = ______
  19. 45 + 10 = ______
  20. 78 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath