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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 533 · 40 questions
TalentJR

How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.

NameDateTime takenScore ___ / 40
  1. 1.87 − 56 =
  2. 2.525 − 488 =
  3. 3.311 − 295 =
  4. 4.205 − 198 =
  5. 5.73 − 30 =
  6. 6.329 − 292 =
  7. 7.515 − 490 =
  8. 8.124 − 89 =
  9. 9.504 − 484 =
  10. 10.70 − 27 =
  11. 11.210 − 180 =
  12. 12.118 − 91 =
  13. 13.319 − 276 =
  14. 14.77 − 40 =
  15. 15.73 − 40 =
  16. 16.1009 − 992 =
  17. 17.101 − 86 =
  18. 18.1002 − 977 =
  19. 19.222 − 191 =
  20. 20.303 − 283 =
  21. 21.1012 − 998 =
  22. 22.98 − 67 =
  23. 23.325 − 285 =
  24. 24.506 − 491 =
  25. 25.66 − 29 =
  26. 26.523 − 489 =
  27. 27.522 − 491 =
  28. 28.59 − 47 =
  29. 29.317 − 297 =
  30. 30.309 − 283 =
  31. 31.100 − 70 =
  32. 32.66 − 32 =
  33. 33.86 − 78 =
  34. 34.506 − 485 =
  35. 35.94 − 60 =
  36. 36.216 − 183 =
  37. 37.507 − 498 =
  38. 38.105 − 74 =
  39. 39.202 − 185 =
  40. 40.88 − 76 =

Answer key

  1. 31
  2. 37
  3. 16
  4. 7
  5. 43
  6. 37
  7. 25
  8. 35
  9. 20
  10. 43
  11. 30
  12. 27
  13. 43
  14. 37
  15. 33
  16. 17
  17. 15
  18. 25
  19. 31
  20. 20
  21. 14
  22. 31
  23. 40
  24. 15
  25. 37
  26. 34
  27. 31
  28. 12
  29. 20
  30. 26
  31. 30
  32. 34
  33. 8
  34. 21
  35. 34
  36. 33
  37. 9
  38. 31
  39. 17
  40. 12

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