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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 482 · 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. 1.503 − 498 =
  2. 2.94 − 71 =
  3. 3.321 − 281 =
  4. 4.325 − 275 =
  5. 5.119 − 89 =
  6. 6.71 − 40 =
  7. 7.105 − 59 =
  8. 8.323 − 295 =
  9. 9.314 − 298 =
  10. 10.530 − 482 =
  11. 11.1002 − 981 =
  12. 12.76 − 36 =
  13. 13.1005 − 995 =
  14. 14.526 − 481 =
  15. 15.83 − 60 =
  16. 16.301 − 287 =
  17. 17.319 − 279 =
  18. 18.109 − 57 =
  19. 19.504 − 496 =
  20. 20.528 − 486 =
  21. 21.522 − 494 =
  22. 22.126 − 78 =
  23. 23.209 − 179 =
  24. 24.111 − 85 =
  25. 25.330 − 285 =
  26. 26.91 − 62 =
  27. 27.96 − 56 =
  28. 28.52 − 40 =
  29. 29.101 − 91 =
  30. 30.313 − 284 =
  31. 31.317 − 276 =
  32. 32.52 − 30 =
  33. 33.113 − 88 =
  34. 34.203 − 196 =
  35. 35.94 − 65 =
  36. 36.122 − 86 =
  37. 37.104 − 63 =
  38. 38.321 − 285 =
  39. 39.95 − 67 =
  40. 40.102 − 63 =

Answer key

  1. 5
  2. 23
  3. 40
  4. 50
  5. 30
  6. 31
  7. 46
  8. 28
  9. 16
  10. 48
  11. 21
  12. 40
  13. 10
  14. 45
  15. 23
  16. 14
  17. 40
  18. 52
  19. 8
  20. 42
  21. 28
  22. 48
  23. 30
  24. 26
  25. 45
  26. 29
  27. 40
  28. 12
  29. 10
  30. 29
  31. 41
  32. 22
  33. 25
  34. 7
  35. 29
  36. 36
  37. 41
  38. 36
  39. 28
  40. 39

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