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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 24 · 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. 1.81 − 55 =
  2. 2.79 − 40 =
  3. 3.87 − 62 =
  4. 4.519 − 494 =
  5. 5.69 − 34 =
  6. 6.1018 − 997 =
  7. 7.80 − 31 =
  8. 8.63 − 45 =
  9. 9.112 − 79 =
  10. 10.59 − 26 =
  11. 11.504 − 497 =
  12. 12.100 − 72 =
  13. 13.513 − 475 =
  14. 14.56 − 37 =
  15. 15.325 − 279 =
  16. 16.501 − 484 =
  17. 17.105 − 68 =
  18. 18.503 − 492 =
  19. 19.106 − 66 =
  20. 20.65 − 33 =
  21. 21.108 − 97 =
  22. 22.107 − 91 =
  23. 23.94 − 75 =
  24. 24.215 − 198 =
  25. 25.526 − 482 =
  26. 26.202 − 189 =
  27. 27.507 − 496 =
  28. 28.503 − 493 =
  29. 29.301 − 296 =
  30. 30.211 − 182 =
  31. 31.86 − 62 =
  32. 32.105 − 95 =
  33. 33.1027 − 979 =
  34. 34.79 − 46 =
  35. 35.73 − 39 =
  36. 36.108 − 70 =
  37. 37.504 − 475 =
  38. 38.106 − 78 =
  39. 39.214 − 177 =
  40. 40.307 − 278 =

Answer key

  1. 26
  2. 39
  3. 25
  4. 25
  5. 35
  6. 21
  7. 49
  8. 18
  9. 33
  10. 33
  11. 7
  12. 28
  13. 38
  14. 19
  15. 46
  16. 17
  17. 37
  18. 11
  19. 40
  20. 32
  21. 11
  22. 16
  23. 19
  24. 17
  25. 44
  26. 13
  27. 11
  28. 10
  29. 5
  30. 29
  31. 24
  32. 10
  33. 48
  34. 33
  35. 34
  36. 38
  37. 29
  38. 28
  39. 37
  40. 29

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