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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 783 · 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. 1.325 − 276 =
  2. 2.326 − 276 =
  3. 3.86 − 56 =
  4. 4.119 − 75 =
  5. 5.53 − 46 =
  6. 6.109 − 93 =
  7. 7.85 − 74 =
  8. 8.1001 − 993 =
  9. 9.322 − 290 =
  10. 10.501 − 477 =
  11. 11.98 − 68 =
  12. 12.307 − 295 =
  13. 13.85 − 76 =
  14. 14.108 − 78 =
  15. 15.304 − 275 =
  16. 16.87 − 55 =
  17. 17.108 − 86 =
  18. 18.225 − 186 =
  19. 19.104 − 74 =
  20. 20.326 − 292 =
  21. 21.208 − 189 =
  22. 22.518 − 494 =
  23. 23.61 − 47 =
  24. 24.1024 − 985 =
  25. 25.88 − 66 =
  26. 26.101 − 95 =
  27. 27.1003 − 993 =
  28. 28.501 − 479 =
  29. 29.87 − 75 =
  30. 30.229 − 183 =
  31. 31.71 − 46 =
  32. 32.106 − 74 =
  33. 33.315 − 286 =
  34. 34.230 − 189 =
  35. 35.102 − 89 =
  36. 36.212 − 198 =
  37. 37.91 − 58 =
  38. 38.71 − 43 =
  39. 39.64 − 33 =
  40. 40.508 − 484 =

Answer key

  1. 49
  2. 50
  3. 30
  4. 44
  5. 7
  6. 16
  7. 11
  8. 8
  9. 32
  10. 24
  11. 30
  12. 12
  13. 9
  14. 30
  15. 29
  16. 32
  17. 22
  18. 39
  19. 30
  20. 34
  21. 19
  22. 24
  23. 14
  24. 39
  25. 22
  26. 6
  27. 10
  28. 22
  29. 12
  30. 46
  31. 25
  32. 32
  33. 29
  34. 41
  35. 13
  36. 14
  37. 33
  38. 28
  39. 31
  40. 24

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