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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 727 · 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. 1.1006 − 985 =
  2. 2.66 − 35 =
  3. 3.206 − 187 =
  4. 4.1002 − 983 =
  5. 5.502 − 487 =
  6. 6.205 − 196 =
  7. 7.524 − 486 =
  8. 8.89 − 59 =
  9. 9.119 − 95 =
  10. 10.101 − 55 =
  11. 11.86 − 60 =
  12. 12.107 − 64 =
  13. 13.72 − 30 =
  14. 14.55 − 41 =
  15. 15.91 − 55 =
  16. 16.322 − 290 =
  17. 17.79 − 39 =
  18. 18.203 − 187 =
  19. 19.94 − 61 =
  20. 20.314 − 276 =
  21. 21.301 − 278 =
  22. 22.1010 − 994 =
  23. 23.60 − 40 =
  24. 24.211 − 186 =
  25. 25.322 − 283 =
  26. 26.507 − 494 =
  27. 27.307 − 298 =
  28. 28.101 − 80 =
  29. 29.79 − 25 =
  30. 30.211 − 176 =
  31. 31.308 − 292 =
  32. 32.525 − 492 =
  33. 33.103 − 78 =
  34. 34.63 − 37 =
  35. 35.1010 − 992 =
  36. 36.85 − 65 =
  37. 37.93 − 63 =
  38. 38.128 − 88 =
  39. 39.122 − 78 =
  40. 40.1019 − 996 =

Answer key

  1. 21
  2. 31
  3. 19
  4. 19
  5. 15
  6. 9
  7. 38
  8. 30
  9. 24
  10. 46
  11. 26
  12. 43
  13. 42
  14. 14
  15. 36
  16. 32
  17. 40
  18. 16
  19. 33
  20. 38
  21. 23
  22. 16
  23. 20
  24. 25
  25. 39
  26. 13
  27. 9
  28. 21
  29. 54
  30. 35
  31. 16
  32. 33
  33. 25
  34. 26
  35. 18
  36. 20
  37. 30
  38. 40
  39. 44
  40. 23

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