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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 770 · 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. 1.123 − 88 =
  2. 2.64 − 41 =
  3. 3.54 − 38 =
  4. 4.104 − 86 =
  5. 5.502 − 496 =
  6. 6.129 − 81 =
  7. 7.209 − 181 =
  8. 8.1007 − 997 =
  9. 9.209 − 194 =
  10. 10.216 − 198 =
  11. 11.82 − 58 =
  12. 12.307 − 296 =
  13. 13.324 − 284 =
  14. 14.503 − 489 =
  15. 15.109 − 62 =
  16. 16.326 − 297 =
  17. 17.91 − 68 =
  18. 18.1014 − 995 =
  19. 19.102 − 89 =
  20. 20.522 − 484 =
  21. 21.310 − 285 =
  22. 22.311 − 277 =
  23. 23.53 − 48 =
  24. 24.102 − 70 =
  25. 25.61 − 45 =
  26. 26.83 − 76 =
  27. 27.80 − 36 =
  28. 28.102 − 93 =
  29. 29.102 − 59 =
  30. 30.307 − 292 =
  31. 31.71 − 47 =
  32. 32.77 − 39 =
  33. 33.523 − 481 =
  34. 34.56 − 45 =
  35. 35.214 − 187 =
  36. 36.75 − 34 =
  37. 37.1001 − 985 =
  38. 38.114 − 80 =
  39. 39.501 − 483 =
  40. 40.1009 − 996 =

Answer key

  1. 35
  2. 23
  3. 16
  4. 18
  5. 6
  6. 48
  7. 28
  8. 10
  9. 15
  10. 18
  11. 24
  12. 11
  13. 40
  14. 14
  15. 47
  16. 29
  17. 23
  18. 19
  19. 13
  20. 38
  21. 25
  22. 34
  23. 5
  24. 32
  25. 16
  26. 7
  27. 44
  28. 9
  29. 43
  30. 15
  31. 24
  32. 38
  33. 42
  34. 11
  35. 27
  36. 41
  37. 16
  38. 34
  39. 18
  40. 13

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