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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 342 · 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. 1.92 − 60 =
  2. 2.97 − 78 =
  3. 3.1021 − 981 =
  4. 4.78 − 36 =
  5. 5.53 − 48 =
  6. 6.1015 − 986 =
  7. 7.202 − 196 =
  8. 8.222 − 187 =
  9. 9.330 − 298 =
  10. 10.79 − 26 =
  11. 11.208 − 191 =
  12. 12.202 − 185 =
  13. 13.85 − 77 =
  14. 14.1014 − 976 =
  15. 15.507 − 482 =
  16. 16.521 − 484 =
  17. 17.505 − 480 =
  18. 18.108 − 61 =
  19. 19.1012 − 987 =
  20. 20.59 − 45 =
  21. 21.107 − 83 =
  22. 22.107 − 96 =
  23. 23.226 − 191 =
  24. 24.517 − 495 =
  25. 25.522 − 482 =
  26. 26.55 − 36 =
  27. 27.218 − 195 =
  28. 28.123 − 94 =
  29. 29.212 − 177 =
  30. 30.1013 − 990 =
  31. 31.68 − 32 =
  32. 32.1002 − 976 =
  33. 33.85 − 78 =
  34. 34.52 − 34 =
  35. 35.1008 − 976 =
  36. 36.86 − 72 =
  37. 37.524 − 495 =
  38. 38.1020 − 996 =
  39. 39.89 − 70 =
  40. 40.70 − 44 =

Answer key

  1. 32
  2. 19
  3. 40
  4. 42
  5. 5
  6. 29
  7. 6
  8. 35
  9. 32
  10. 53
  11. 17
  12. 17
  13. 8
  14. 38
  15. 25
  16. 37
  17. 25
  18. 47
  19. 25
  20. 14
  21. 24
  22. 11
  23. 35
  24. 22
  25. 40
  26. 19
  27. 23
  28. 29
  29. 35
  30. 23
  31. 36
  32. 26
  33. 7
  34. 18
  35. 32
  36. 14
  37. 29
  38. 24
  39. 19
  40. 26

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