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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 303 · 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. 1.509 − 495 =
  2. 2.305 − 275 =
  3. 3.88 − 59 =
  4. 4.216 − 198 =
  5. 5.84 − 72 =
  6. 6.80 − 46 =
  7. 7.524 − 483 =
  8. 8.109 − 59 =
  9. 9.203 − 189 =
  10. 10.94 − 57 =
  11. 11.202 − 175 =
  12. 12.301 − 297 =
  13. 13.62 − 25 =
  14. 14.1006 − 985 =
  15. 15.203 − 192 =
  16. 16.127 − 88 =
  17. 17.520 − 496 =
  18. 18.60 − 47 =
  19. 19.68 − 32 =
  20. 20.511 − 488 =
  21. 21.117 − 77 =
  22. 22.205 − 187 =
  23. 23.302 − 286 =
  24. 24.91 − 65 =
  25. 25.230 − 177 =
  26. 26.82 − 60 =
  27. 27.76 − 34 =
  28. 28.1005 − 989 =
  29. 29.504 − 493 =
  30. 30.528 − 478 =
  31. 31.322 − 286 =
  32. 32.526 − 480 =
  33. 33.52 − 28 =
  34. 34.507 − 496 =
  35. 35.99 − 64 =
  36. 36.1018 − 985 =
  37. 37.220 − 185 =
  38. 38.105 − 60 =
  39. 39.325 − 296 =
  40. 40.109 − 84 =

Answer key

  1. 14
  2. 30
  3. 29
  4. 18
  5. 12
  6. 34
  7. 41
  8. 50
  9. 14
  10. 37
  11. 27
  12. 4
  13. 37
  14. 21
  15. 11
  16. 39
  17. 24
  18. 13
  19. 36
  20. 23
  21. 40
  22. 18
  23. 16
  24. 26
  25. 53
  26. 22
  27. 42
  28. 16
  29. 11
  30. 50
  31. 36
  32. 46
  33. 24
  34. 11
  35. 35
  36. 33
  37. 35
  38. 45
  39. 29
  40. 25

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