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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 885 · 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. 1.329 − 277 =
  2. 2.79 − 36 =
  3. 3.305 − 292 =
  4. 4.89 − 77 =
  5. 5.88 − 71 =
  6. 6.92 − 66 =
  7. 7.65 − 47 =
  8. 8.83 − 78 =
  9. 9.1024 − 996 =
  10. 10.201 − 188 =
  11. 11.316 − 279 =
  12. 12.107 − 71 =
  13. 13.227 − 181 =
  14. 14.124 − 86 =
  15. 15.1006 − 984 =
  16. 16.71 − 40 =
  17. 17.316 − 295 =
  18. 18.1003 − 996 =
  19. 19.108 − 57 =
  20. 20.111 − 81 =
  21. 21.502 − 491 =
  22. 22.115 − 93 =
  23. 23.100 − 61 =
  24. 24.325 − 279 =
  25. 25.307 − 297 =
  26. 26.108 − 62 =
  27. 27.116 − 86 =
  28. 28.95 − 68 =
  29. 29.508 − 494 =
  30. 30.1022 − 996 =
  31. 31.71 − 38 =
  32. 32.503 − 479 =
  33. 33.226 − 197 =
  34. 34.67 − 46 =
  35. 35.320 − 276 =
  36. 36.321 − 289 =
  37. 37.211 − 190 =
  38. 38.225 − 189 =
  39. 39.55 − 35 =
  40. 40.65 − 46 =

Answer key

  1. 52
  2. 43
  3. 13
  4. 12
  5. 17
  6. 26
  7. 18
  8. 5
  9. 28
  10. 13
  11. 37
  12. 36
  13. 46
  14. 38
  15. 22
  16. 31
  17. 21
  18. 7
  19. 51
  20. 30
  21. 11
  22. 22
  23. 39
  24. 46
  25. 10
  26. 46
  27. 30
  28. 27
  29. 14
  30. 26
  31. 33
  32. 24
  33. 29
  34. 21
  35. 44
  36. 32
  37. 21
  38. 36
  39. 20
  40. 19

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