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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 116 · 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. 1.322 − 289 =
  2. 2.91 − 75 =
  3. 3.125 − 96 =
  4. 4.67 − 39 =
  5. 5.89 − 65 =
  6. 6.1004 − 995 =
  7. 7.305 − 287 =
  8. 8.87 − 57 =
  9. 9.129 − 81 =
  10. 10.123 − 86 =
  11. 11.68 − 39 =
  12. 12.525 − 494 =
  13. 13.71 − 39 =
  14. 14.302 − 278 =
  15. 15.56 − 33 =
  16. 16.325 − 283 =
  17. 17.78 − 48 =
  18. 18.1026 − 980 =
  19. 19.119 − 80 =
  20. 20.1004 − 993 =
  21. 21.104 − 60 =
  22. 22.227 − 196 =
  23. 23.527 − 494 =
  24. 24.68 − 32 =
  25. 25.95 − 78 =
  26. 26.314 − 280 =
  27. 27.100 − 74 =
  28. 28.111 − 96 =
  29. 29.202 − 196 =
  30. 30.72 − 32 =
  31. 31.522 − 498 =
  32. 32.326 − 282 =
  33. 33.519 − 497 =
  34. 34.501 − 491 =
  35. 35.55 − 30 =
  36. 36.1009 − 993 =
  37. 37.529 − 494 =
  38. 38.53 − 36 =
  39. 39.116 − 87 =
  40. 40.1005 − 981 =

Answer key

  1. 33
  2. 16
  3. 29
  4. 28
  5. 24
  6. 9
  7. 18
  8. 30
  9. 48
  10. 37
  11. 29
  12. 31
  13. 32
  14. 24
  15. 23
  16. 42
  17. 30
  18. 46
  19. 39
  20. 11
  21. 44
  22. 31
  23. 33
  24. 36
  25. 17
  26. 34
  27. 26
  28. 15
  29. 6
  30. 40
  31. 24
  32. 44
  33. 22
  34. 10
  35. 25
  36. 16
  37. 35
  38. 17
  39. 29
  40. 24

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