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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 616 · 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. 1.501 − 493 =
  2. 2.90 − 71 =
  3. 3.522 − 475 =
  4. 4.322 − 279 =
  5. 5.306 − 298 =
  6. 6.129 − 84 =
  7. 7.103 − 66 =
  8. 8.102 − 78 =
  9. 9.55 − 30 =
  10. 10.120 − 86 =
  11. 11.92 − 58 =
  12. 12.106 − 88 =
  13. 13.218 − 189 =
  14. 14.90 − 56 =
  15. 15.77 − 25 =
  16. 16.97 − 56 =
  17. 17.62 − 28 =
  18. 18.74 − 38 =
  19. 19.212 − 197 =
  20. 20.86 − 77 =
  21. 21.95 − 76 =
  22. 22.89 − 70 =
  23. 23.301 − 292 =
  24. 24.1002 − 978 =
  25. 25.210 − 194 =
  26. 26.1001 − 992 =
  27. 27.102 − 91 =
  28. 28.521 − 496 =
  29. 29.1006 − 981 =
  30. 30.1026 − 982 =
  31. 31.230 − 194 =
  32. 32.97 − 57 =
  33. 33.304 − 298 =
  34. 34.83 − 68 =
  35. 35.309 − 292 =
  36. 36.69 − 33 =
  37. 37.503 − 496 =
  38. 38.525 − 498 =
  39. 39.302 − 290 =
  40. 40.1008 − 997 =

Answer key

  1. 8
  2. 19
  3. 47
  4. 43
  5. 8
  6. 45
  7. 37
  8. 24
  9. 25
  10. 34
  11. 34
  12. 18
  13. 29
  14. 34
  15. 52
  16. 41
  17. 34
  18. 36
  19. 15
  20. 9
  21. 19
  22. 19
  23. 9
  24. 24
  25. 16
  26. 9
  27. 11
  28. 25
  29. 25
  30. 44
  31. 36
  32. 40
  33. 6
  34. 15
  35. 17
  36. 36
  37. 7
  38. 27
  39. 12
  40. 11

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