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Mental math worksheet

Intermediate · 24 problems with a full answer key. Free to print, free to copy, and nothing to sign up for.

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Mental math practice

Bridging, two digits · intermediate
Name Date

Show your working. The answer key is on the next page.

  1. 1. 26 + 13 =
  2. 2. 28 + 11 =
  3. 3. 15 + 11 =
  4. 4. 11 + 13 =
  5. 5. 14 + 15 =
  6. 6. 16 + 11 =
  7. 7. 45 + 12 =
  8. 8. 43 + 11 =
  9. 9. 32 + 15 =
  10. 10. 24 + 13 =
  11. 11. 26 + 10 =
  12. 12. 24 + 14 =
  13. 13. 21 + 15 =
  14. 14. 32 + 16 =
  15. 15. 24 + 15 =
  16. 16. 11 + 14 =
  17. 17. 38 + 10 =
  18. 18. 29 + 10 =
  19. 19. 17 + 10 =
  20. 20. 25 + 13 =
  21. 21. 32 + 11 =
  22. 22. 36 + 11 =
  23. 23. 13 + 13 =
  24. 24. 24 + 10 =
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Mental math practice

Bridging, two digits · intermediate
Name Date
Answer key
  1. 1. 26 + 13 = 39
  2. 2. 28 + 11 = 39
  3. 3. 15 + 11 = 26
  4. 4. 11 + 13 = 24
  5. 5. 14 + 15 = 29
  6. 6. 16 + 11 = 27
  7. 7. 45 + 12 = 57
  8. 8. 43 + 11 = 54
  9. 9. 32 + 15 = 47
  10. 10. 24 + 13 = 37
  11. 11. 26 + 10 = 36
  12. 12. 24 + 14 = 38
  13. 13. 21 + 15 = 36
  14. 14. 32 + 16 = 48
  15. 15. 24 + 15 = 39
  16. 16. 11 + 14 = 25
  17. 17. 38 + 10 = 48
  18. 18. 29 + 10 = 39
  19. 19. 17 + 10 = 27
  20. 20. 25 + 13 = 38
  21. 21. 32 + 11 = 43
  22. 22. 36 + 11 = 47
  23. 23. 13 + 13 = 26
  24. 24. 24 + 10 = 34
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Standards this covers

  • 1.OA.B.3
  • 1.OA.C.6
  • 2.NBT.B.5
  • 2.OA.B.2

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