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. 29 + 20 = ______
  2. 86 − 10 = ______
  3. 36 + 20 = ______
  4. 61 + 20 = ______
  5. 73 + 20 = ______
  6. 52 + 10 = ______
  7. 8 × 10 = ______
  8. 66 + 20 = ______
  9. 40 + 10 = ______
  10. 7 × 10 = ______
  11. 87 − 10 = ______
  12. 9 × 10 = ______
  13. 42 + 10 = ______
  14. 42 + 20 = ______
  15. 70 − 10 = ______
  16. 21 + 20 = ______
  17. 86 + 10 = ______
  18. 12 + 20 = ______
  19. 56 + 20 = ______
  20. 5 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath