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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 980 · 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. 1.529 − 493 =
  2. 2.101 − 98 =
  3. 3.80 − 44 =
  4. 4.115 − 92 =
  5. 5.311 − 286 =
  6. 6.519 − 488 =
  7. 7.524 − 483 =
  8. 8.217 − 194 =
  9. 9.93 − 64 =
  10. 10.66 − 29 =
  11. 11.109 − 97 =
  12. 12.1002 − 990 =
  13. 13.86 − 68 =
  14. 14.502 − 486 =
  15. 15.529 − 486 =
  16. 16.311 − 295 =
  17. 17.52 − 38 =
  18. 18.215 − 193 =
  19. 19.212 − 175 =
  20. 20.76 − 37 =
  21. 21.92 − 60 =
  22. 22.85 − 78 =
  23. 23.108 − 93 =
  24. 24.330 − 282 =
  25. 25.67 − 41 =
  26. 26.228 − 184 =
  27. 27.307 − 275 =
  28. 28.114 − 81 =
  29. 29.117 − 75 =
  30. 30.501 − 490 =
  31. 31.322 − 276 =
  32. 32.97 − 70 =
  33. 33.507 − 495 =
  34. 34.51 − 47 =
  35. 35.509 − 488 =
  36. 36.318 − 296 =
  37. 37.130 − 82 =
  38. 38.97 − 74 =
  39. 39.77 − 44 =
  40. 40.318 − 277 =

Answer key

  1. 36
  2. 3
  3. 36
  4. 23
  5. 25
  6. 31
  7. 41
  8. 23
  9. 29
  10. 37
  11. 12
  12. 12
  13. 18
  14. 16
  15. 43
  16. 16
  17. 14
  18. 22
  19. 37
  20. 39
  21. 32
  22. 7
  23. 15
  24. 48
  25. 26
  26. 44
  27. 32
  28. 33
  29. 42
  30. 11
  31. 46
  32. 27
  33. 12
  34. 4
  35. 21
  36. 22
  37. 48
  38. 23
  39. 33
  40. 41

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