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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 271 · 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. 1.207 − 191 =
  2. 2.504 − 479 =
  3. 3.108 − 91 =
  4. 4.317 − 286 =
  5. 5.1017 − 989 =
  6. 6.1026 − 987 =
  7. 7.211 − 176 =
  8. 8.66 − 43 =
  9. 9.95 − 78 =
  10. 10.505 − 497 =
  11. 11.55 − 47 =
  12. 12.76 − 45 =
  13. 13.118 − 76 =
  14. 14.208 − 182 =
  15. 15.104 − 84 =
  16. 16.528 − 475 =
  17. 17.106 − 92 =
  18. 18.313 − 279 =
  19. 19.103 − 62 =
  20. 20.217 − 189 =
  21. 21.213 − 198 =
  22. 22.59 − 45 =
  23. 23.69 − 36 =
  24. 24.107 − 57 =
  25. 25.58 − 30 =
  26. 26.319 − 292 =
  27. 27.1026 − 996 =
  28. 28.98 − 57 =
  29. 29.115 − 87 =
  30. 30.314 − 277 =
  31. 31.105 − 73 =
  32. 32.226 − 188 =
  33. 33.305 − 276 =
  34. 34.83 − 59 =
  35. 35.302 − 289 =
  36. 36.106 − 66 =
  37. 37.80 − 32 =
  38. 38.57 − 26 =
  39. 39.113 − 83 =
  40. 40.303 − 277 =

Answer key

  1. 16
  2. 25
  3. 17
  4. 31
  5. 28
  6. 39
  7. 35
  8. 23
  9. 17
  10. 8
  11. 8
  12. 31
  13. 42
  14. 26
  15. 20
  16. 53
  17. 14
  18. 34
  19. 41
  20. 28
  21. 15
  22. 14
  23. 33
  24. 50
  25. 28
  26. 27
  27. 30
  28. 41
  29. 28
  30. 37
  31. 32
  32. 38
  33. 29
  34. 24
  35. 13
  36. 40
  37. 48
  38. 31
  39. 30
  40. 26

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