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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 537 · 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. 1.527 − 496 =
  2. 2.524 − 481 =
  3. 3.207 − 191 =
  4. 4.309 − 281 =
  5. 5.113 − 97 =
  6. 6.317 − 281 =
  7. 7.1002 − 996 =
  8. 8.51 − 35 =
  9. 9.1018 − 996 =
  10. 10.522 − 484 =
  11. 11.71 − 32 =
  12. 12.325 − 289 =
  13. 13.90 − 75 =
  14. 14.512 − 488 =
  15. 15.1015 − 995 =
  16. 16.70 − 32 =
  17. 17.1006 − 990 =
  18. 18.116 − 91 =
  19. 19.106 − 78 =
  20. 20.220 − 195 =
  21. 21.224 − 183 =
  22. 22.123 − 96 =
  23. 23.223 − 175 =
  24. 24.310 − 287 =
  25. 25.71 − 30 =
  26. 26.103 − 83 =
  27. 27.302 − 281 =
  28. 28.87 − 71 =
  29. 29.92 − 73 =
  30. 30.1012 − 987 =
  31. 31.1004 − 989 =
  32. 32.78 − 47 =
  33. 33.220 − 188 =
  34. 34.320 − 281 =
  35. 35.113 − 92 =
  36. 36.513 − 484 =
  37. 37.84 − 76 =
  38. 38.317 − 294 =
  39. 39.98 − 61 =
  40. 40.502 − 484 =

Answer key

  1. 31
  2. 43
  3. 16
  4. 28
  5. 16
  6. 36
  7. 6
  8. 16
  9. 22
  10. 38
  11. 39
  12. 36
  13. 15
  14. 24
  15. 20
  16. 38
  17. 16
  18. 25
  19. 28
  20. 25
  21. 41
  22. 27
  23. 48
  24. 23
  25. 41
  26. 20
  27. 21
  28. 16
  29. 19
  30. 25
  31. 15
  32. 31
  33. 32
  34. 39
  35. 21
  36. 29
  37. 8
  38. 23
  39. 37
  40. 18

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