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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 362 · 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. 1.85 − 71 =
  2. 2.213 − 179 =
  3. 3.101 − 98 =
  4. 4.205 − 178 =
  5. 5.225 − 181 =
  6. 6.210 − 186 =
  7. 7.60 − 25 =
  8. 8.75 − 41 =
  9. 9.62 − 39 =
  10. 10.60 − 47 =
  11. 11.1021 − 995 =
  12. 12.313 − 293 =
  13. 13.1017 − 984 =
  14. 14.109 − 72 =
  15. 15.53 − 35 =
  16. 16.84 − 61 =
  17. 17.215 − 188 =
  18. 18.59 − 41 =
  19. 19.1020 − 986 =
  20. 20.302 − 288 =
  21. 21.304 − 294 =
  22. 22.512 − 492 =
  23. 23.301 − 282 =
  24. 24.218 − 193 =
  25. 25.91 − 74 =
  26. 26.97 − 62 =
  27. 27.523 − 497 =
  28. 28.215 − 191 =
  29. 29.108 − 63 =
  30. 30.509 − 480 =
  31. 31.205 − 183 =
  32. 32.526 − 495 =
  33. 33.1027 − 976 =
  34. 34.107 − 91 =
  35. 35.55 − 35 =
  36. 36.316 − 284 =
  37. 37.81 − 72 =
  38. 38.524 − 483 =
  39. 39.1002 − 983 =
  40. 40.209 − 184 =

Answer key

  1. 14
  2. 34
  3. 3
  4. 27
  5. 44
  6. 24
  7. 35
  8. 34
  9. 23
  10. 13
  11. 26
  12. 20
  13. 33
  14. 37
  15. 18
  16. 23
  17. 27
  18. 18
  19. 34
  20. 14
  21. 10
  22. 20
  23. 19
  24. 25
  25. 17
  26. 35
  27. 26
  28. 24
  29. 45
  30. 29
  31. 22
  32. 31
  33. 51
  34. 16
  35. 20
  36. 32
  37. 9
  38. 41
  39. 19
  40. 25

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