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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 37 · 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. 1.85 − 76 =
  2. 2.1008 − 981 =
  3. 3.105 − 75 =
  4. 4.89 − 70 =
  5. 5.526 − 490 =
  6. 6.327 − 283 =
  7. 7.84 − 66 =
  8. 8.517 − 492 =
  9. 9.229 − 181 =
  10. 10.110 − 76 =
  11. 11.313 − 275 =
  12. 12.1014 − 990 =
  13. 13.502 − 484 =
  14. 14.213 − 179 =
  15. 15.203 − 193 =
  16. 16.123 − 88 =
  17. 17.110 − 77 =
  18. 18.76 − 45 =
  19. 19.303 − 287 =
  20. 20.108 − 76 =
  21. 21.302 − 294 =
  22. 22.65 − 27 =
  23. 23.121 − 77 =
  24. 24.319 − 290 =
  25. 25.517 − 496 =
  26. 26.509 − 494 =
  27. 27.1010 − 981 =
  28. 28.81 − 73 =
  29. 29.509 − 493 =
  30. 30.311 − 294 =
  31. 31.98 − 75 =
  32. 32.1008 − 998 =
  33. 33.508 − 497 =
  34. 34.305 − 281 =
  35. 35.315 − 296 =
  36. 36.59 − 36 =
  37. 37.82 − 72 =
  38. 38.328 − 291 =
  39. 39.65 − 45 =
  40. 40.202 − 180 =

Answer key

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

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