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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 944 · 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. 1.106 − 97 =
  2. 2.530 − 476 =
  3. 3.83 − 65 =
  4. 4.326 − 298 =
  5. 5.207 − 196 =
  6. 6.89 − 74 =
  7. 7.227 − 188 =
  8. 8.225 − 191 =
  9. 9.222 − 187 =
  10. 10.327 − 284 =
  11. 11.328 − 293 =
  12. 12.1005 − 991 =
  13. 13.123 − 93 =
  14. 14.125 − 80 =
  15. 15.117 − 89 =
  16. 16.108 − 63 =
  17. 17.99 − 56 =
  18. 18.318 − 282 =
  19. 19.502 − 478 =
  20. 20.106 − 76 =
  21. 21.118 − 95 =
  22. 22.100 − 59 =
  23. 23.97 − 78 =
  24. 24.1004 − 991 =
  25. 25.301 − 280 =
  26. 26.325 − 288 =
  27. 27.79 − 38 =
  28. 28.319 − 289 =
  29. 29.1005 − 985 =
  30. 30.202 − 192 =
  31. 31.328 − 291 =
  32. 32.311 − 288 =
  33. 33.1020 − 984 =
  34. 34.93 − 69 =
  35. 35.522 − 483 =
  36. 36.107 − 73 =
  37. 37.114 − 82 =
  38. 38.504 − 478 =
  39. 39.81 − 62 =
  40. 40.82 − 76 =

Answer key

  1. 9
  2. 54
  3. 18
  4. 28
  5. 11
  6. 15
  7. 39
  8. 34
  9. 35
  10. 43
  11. 35
  12. 14
  13. 30
  14. 45
  15. 28
  16. 45
  17. 43
  18. 36
  19. 24
  20. 30
  21. 23
  22. 41
  23. 19
  24. 13
  25. 21
  26. 37
  27. 41
  28. 30
  29. 20
  30. 10
  31. 37
  32. 23
  33. 36
  34. 24
  35. 39
  36. 34
  37. 32
  38. 26
  39. 19
  40. 6

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