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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 652 · 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. 1.118 − 88 =
  2. 2.81 − 55 =
  3. 3.120 − 93 =
  4. 4.97 − 77 =
  5. 5.518 − 492 =
  6. 6.225 − 193 =
  7. 7.129 − 89 =
  8. 8.1008 − 994 =
  9. 9.110 − 78 =
  10. 10.54 − 48 =
  11. 11.501 − 491 =
  12. 12.109 − 78 =
  13. 13.83 − 69 =
  14. 14.105 − 69 =
  15. 15.78 − 32 =
  16. 16.81 − 69 =
  17. 17.128 − 90 =
  18. 18.502 − 482 =
  19. 19.204 − 196 =
  20. 20.216 − 183 =
  21. 21.326 − 293 =
  22. 22.208 − 190 =
  23. 23.82 − 57 =
  24. 24.214 − 185 =
  25. 25.89 − 74 =
  26. 26.1011 − 990 =
  27. 27.502 − 476 =
  28. 28.1007 − 992 =
  29. 29.103 − 96 =
  30. 30.317 − 295 =
  31. 31.126 − 79 =
  32. 32.314 − 285 =
  33. 33.216 − 189 =
  34. 34.119 − 94 =
  35. 35.315 − 288 =
  36. 36.75 − 33 =
  37. 37.73 − 28 =
  38. 38.321 − 283 =
  39. 39.1024 − 992 =
  40. 40.55 − 39 =

Answer key

  1. 30
  2. 26
  3. 27
  4. 20
  5. 26
  6. 32
  7. 40
  8. 14
  9. 32
  10. 6
  11. 10
  12. 31
  13. 14
  14. 36
  15. 46
  16. 12
  17. 38
  18. 20
  19. 8
  20. 33
  21. 33
  22. 18
  23. 25
  24. 29
  25. 15
  26. 21
  27. 26
  28. 15
  29. 7
  30. 22
  31. 47
  32. 29
  33. 27
  34. 25
  35. 27
  36. 42
  37. 45
  38. 38
  39. 32
  40. 16

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