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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 743 · 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. 1.127 − 89 =
  2. 2.1009 − 978 =
  3. 3.319 − 294 =
  4. 4.67 − 34 =
  5. 5.328 − 291 =
  6. 6.201 − 197 =
  7. 7.102 − 70 =
  8. 8.1001 − 991 =
  9. 9.85 − 65 =
  10. 10.92 − 67 =
  11. 11.307 − 281 =
  12. 12.1011 − 998 =
  13. 13.72 − 35 =
  14. 14.225 − 177 =
  15. 15.328 − 298 =
  16. 16.87 − 66 =
  17. 17.103 − 57 =
  18. 18.79 − 41 =
  19. 19.1009 − 991 =
  20. 20.311 − 297 =
  21. 21.525 − 481 =
  22. 22.86 − 59 =
  23. 23.508 − 484 =
  24. 24.108 − 61 =
  25. 25.61 − 32 =
  26. 26.114 − 81 =
  27. 27.520 − 492 =
  28. 28.212 − 175 =
  29. 29.225 − 196 =
  30. 30.202 − 193 =
  31. 31.76 − 47 =
  32. 32.524 − 481 =
  33. 33.71 − 38 =
  34. 34.91 − 65 =
  35. 35.322 − 284 =
  36. 36.1001 − 985 =
  37. 37.208 − 177 =
  38. 38.106 − 65 =
  39. 39.94 − 76 =
  40. 40.203 − 196 =

Answer key

  1. 38
  2. 31
  3. 25
  4. 33
  5. 37
  6. 4
  7. 32
  8. 10
  9. 20
  10. 25
  11. 26
  12. 13
  13. 37
  14. 48
  15. 30
  16. 21
  17. 46
  18. 38
  19. 18
  20. 14
  21. 44
  22. 27
  23. 24
  24. 47
  25. 29
  26. 33
  27. 28
  28. 37
  29. 29
  30. 9
  31. 29
  32. 43
  33. 33
  34. 26
  35. 38
  36. 16
  37. 31
  38. 41
  39. 18
  40. 7

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