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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 547 · 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. 1.1011 − 996 =
  2. 2.211 − 178 =
  3. 3.91 − 76 =
  4. 4.307 − 284 =
  5. 5.123 − 88 =
  6. 6.109 − 62 =
  7. 7.309 − 290 =
  8. 8.107 − 80 =
  9. 9.209 − 186 =
  10. 10.313 − 294 =
  11. 11.93 − 71 =
  12. 12.308 − 277 =
  13. 13.317 − 282 =
  14. 14.51 − 48 =
  15. 15.100 − 56 =
  16. 16.103 − 66 =
  17. 17.523 − 485 =
  18. 18.504 − 486 =
  19. 19.66 − 33 =
  20. 20.99 − 76 =
  21. 21.327 − 297 =
  22. 22.62 − 37 =
  23. 23.520 − 477 =
  24. 24.95 − 72 =
  25. 25.126 − 78 =
  26. 26.100 − 76 =
  27. 27.204 − 182 =
  28. 28.211 − 187 =
  29. 29.88 − 74 =
  30. 30.53 − 37 =
  31. 31.526 − 496 =
  32. 32.302 − 297 =
  33. 33.504 − 482 =
  34. 34.229 − 198 =
  35. 35.517 − 481 =
  36. 36.94 − 68 =
  37. 37.204 − 179 =
  38. 38.104 − 58 =
  39. 39.311 − 292 =
  40. 40.86 − 63 =

Answer key

  1. 15
  2. 33
  3. 15
  4. 23
  5. 35
  6. 47
  7. 19
  8. 27
  9. 23
  10. 19
  11. 22
  12. 31
  13. 35
  14. 3
  15. 44
  16. 37
  17. 38
  18. 18
  19. 33
  20. 23
  21. 30
  22. 25
  23. 43
  24. 23
  25. 48
  26. 24
  27. 22
  28. 24
  29. 14
  30. 16
  31. 30
  32. 5
  33. 22
  34. 31
  35. 36
  36. 26
  37. 25
  38. 46
  39. 19
  40. 23

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