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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 286 · 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. 1.324 − 292 =
  2. 2.318 − 297 =
  3. 3.313 − 289 =
  4. 4.55 − 28 =
  5. 5.93 − 55 =
  6. 6.228 − 187 =
  7. 7.1028 − 984 =
  8. 8.118 − 86 =
  9. 9.209 − 193 =
  10. 10.58 − 39 =
  11. 11.1006 − 986 =
  12. 12.86 − 74 =
  13. 13.52 − 48 =
  14. 14.86 − 62 =
  15. 15.84 − 57 =
  16. 16.1003 − 977 =
  17. 17.327 − 297 =
  18. 18.220 − 196 =
  19. 19.330 − 286 =
  20. 20.313 − 284 =
  21. 21.113 − 89 =
  22. 22.217 − 194 =
  23. 23.312 − 295 =
  24. 24.110 − 58 =
  25. 25.105 − 75 =
  26. 26.67 − 33 =
  27. 27.72 − 32 =
  28. 28.1006 − 996 =
  29. 29.110 − 72 =
  30. 30.1030 − 992 =
  31. 31.55 − 26 =
  32. 32.1018 − 986 =
  33. 33.511 − 492 =
  34. 34.303 − 277 =
  35. 35.1015 − 997 =
  36. 36.73 − 31 =
  37. 37.215 − 195 =
  38. 38.322 − 297 =
  39. 39.71 − 48 =
  40. 40.77 − 48 =

Answer key

  1. 32
  2. 21
  3. 24
  4. 27
  5. 38
  6. 41
  7. 44
  8. 32
  9. 16
  10. 19
  11. 20
  12. 12
  13. 4
  14. 24
  15. 27
  16. 26
  17. 30
  18. 24
  19. 44
  20. 29
  21. 24
  22. 23
  23. 17
  24. 52
  25. 30
  26. 34
  27. 40
  28. 10
  29. 38
  30. 38
  31. 29
  32. 32
  33. 19
  34. 26
  35. 18
  36. 42
  37. 20
  38. 25
  39. 23
  40. 29

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