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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 606 · 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. 1.205 − 191 =
  2. 2.104 − 98 =
  3. 3.91 − 76 =
  4. 4.325 − 284 =
  5. 5.316 − 284 =
  6. 6.1010 − 980 =
  7. 7.524 − 479 =
  8. 8.202 − 193 =
  9. 9.77 − 39 =
  10. 10.320 − 277 =
  11. 11.99 − 75 =
  12. 12.522 − 495 =
  13. 13.527 − 488 =
  14. 14.99 − 78 =
  15. 15.226 − 196 =
  16. 16.1026 − 975 =
  17. 17.311 − 297 =
  18. 18.98 − 71 =
  19. 19.129 − 79 =
  20. 20.1022 − 981 =
  21. 21.1004 − 997 =
  22. 22.106 − 86 =
  23. 23.101 − 90 =
  24. 24.114 − 81 =
  25. 25.60 − 39 =
  26. 26.87 − 75 =
  27. 27.1018 − 984 =
  28. 28.86 − 75 =
  29. 29.322 − 287 =
  30. 30.221 − 181 =
  31. 31.91 − 78 =
  32. 32.203 − 198 =
  33. 33.117 − 87 =
  34. 34.97 − 76 =
  35. 35.82 − 68 =
  36. 36.91 − 66 =
  37. 37.1011 − 992 =
  38. 38.521 − 486 =
  39. 39.312 − 293 =
  40. 40.515 − 496 =

Answer key

  1. 14
  2. 6
  3. 15
  4. 41
  5. 32
  6. 30
  7. 45
  8. 9
  9. 38
  10. 43
  11. 24
  12. 27
  13. 39
  14. 21
  15. 30
  16. 51
  17. 14
  18. 27
  19. 50
  20. 41
  21. 7
  22. 20
  23. 11
  24. 33
  25. 21
  26. 12
  27. 34
  28. 11
  29. 35
  30. 40
  31. 13
  32. 5
  33. 30
  34. 21
  35. 14
  36. 25
  37. 19
  38. 35
  39. 19
  40. 19

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