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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 985 · 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. 1.1028 − 976 =
  2. 2.230 − 191 =
  3. 3.60 − 37 =
  4. 4.91 − 68 =
  5. 5.127 − 77 =
  6. 6.302 − 291 =
  7. 7.105 − 67 =
  8. 8.217 − 187 =
  9. 9.81 − 63 =
  10. 10.205 − 197 =
  11. 11.102 − 94 =
  12. 12.1011 − 984 =
  13. 13.1017 − 978 =
  14. 14.62 − 46 =
  15. 15.93 − 66 =
  16. 16.1009 − 994 =
  17. 17.107 − 58 =
  18. 18.517 − 484 =
  19. 19.526 − 484 =
  20. 20.1022 − 975 =
  21. 21.502 − 493 =
  22. 22.205 − 180 =
  23. 23.211 − 184 =
  24. 24.304 − 289 =
  25. 25.316 − 298 =
  26. 26.82 − 65 =
  27. 27.205 − 196 =
  28. 28.204 − 188 =
  29. 29.1027 − 986 =
  30. 30.311 − 275 =
  31. 31.1030 − 984 =
  32. 32.518 − 484 =
  33. 33.308 − 278 =
  34. 34.527 − 492 =
  35. 35.230 − 192 =
  36. 36.1003 − 997 =
  37. 37.313 − 296 =
  38. 38.517 − 479 =
  39. 39.323 − 282 =
  40. 40.109 − 64 =

Answer key

  1. 52
  2. 39
  3. 23
  4. 23
  5. 50
  6. 11
  7. 38
  8. 30
  9. 18
  10. 8
  11. 8
  12. 27
  13. 39
  14. 16
  15. 27
  16. 15
  17. 49
  18. 33
  19. 42
  20. 47
  21. 9
  22. 25
  23. 27
  24. 15
  25. 18
  26. 17
  27. 9
  28. 16
  29. 41
  30. 36
  31. 46
  32. 34
  33. 30
  34. 35
  35. 38
  36. 6
  37. 17
  38. 38
  39. 41
  40. 45

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