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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 655 · 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. 1.522 − 494 =
  2. 2.108 − 98 =
  3. 3.325 − 277 =
  4. 4.504 − 492 =
  5. 5.324 − 298 =
  6. 6.107 − 96 =
  7. 7.229 − 177 =
  8. 8.323 − 280 =
  9. 9.120 − 85 =
  10. 10.111 − 97 =
  11. 11.514 − 489 =
  12. 12.1006 − 982 =
  13. 13.126 − 84 =
  14. 14.84 − 78 =
  15. 15.105 − 86 =
  16. 16.312 − 288 =
  17. 17.102 − 85 =
  18. 18.55 − 44 =
  19. 19.91 − 63 =
  20. 20.56 − 48 =
  21. 21.116 − 84 =
  22. 22.311 − 292 =
  23. 23.100 − 68 =
  24. 24.304 − 294 =
  25. 25.101 − 98 =
  26. 26.317 − 282 =
  27. 27.98 − 63 =
  28. 28.51 − 42 =
  29. 29.206 − 178 =
  30. 30.1020 − 979 =
  31. 31.108 − 73 =
  32. 32.509 − 477 =
  33. 33.110 − 78 =
  34. 34.309 − 283 =
  35. 35.501 − 490 =
  36. 36.215 − 195 =
  37. 37.525 − 492 =
  38. 38.89 − 68 =
  39. 39.319 − 292 =
  40. 40.66 − 29 =

Answer key

  1. 28
  2. 10
  3. 48
  4. 12
  5. 26
  6. 11
  7. 52
  8. 43
  9. 35
  10. 14
  11. 25
  12. 24
  13. 42
  14. 6
  15. 19
  16. 24
  17. 17
  18. 11
  19. 28
  20. 8
  21. 32
  22. 19
  23. 32
  24. 10
  25. 3
  26. 35
  27. 35
  28. 9
  29. 28
  30. 41
  31. 35
  32. 32
  33. 32
  34. 26
  35. 11
  36. 20
  37. 33
  38. 21
  39. 27
  40. 37

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