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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 817 · 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. 1.102 − 93 =
  2. 2.519 − 492 =
  3. 3.86 − 57 =
  4. 4.1001 − 996 =
  5. 5.326 − 281 =
  6. 6.226 − 197 =
  7. 7.1005 − 997 =
  8. 8.55 − 28 =
  9. 9.89 − 65 =
  10. 10.105 − 58 =
  11. 11.507 − 477 =
  12. 12.1009 − 978 =
  13. 13.60 − 39 =
  14. 14.83 − 62 =
  15. 15.56 − 26 =
  16. 16.56 − 46 =
  17. 17.220 − 179 =
  18. 18.129 − 95 =
  19. 19.207 − 191 =
  20. 20.505 − 493 =
  21. 21.308 − 293 =
  22. 22.530 − 482 =
  23. 23.527 − 479 =
  24. 24.322 − 289 =
  25. 25.1009 − 983 =
  26. 26.214 − 183 =
  27. 27.504 − 489 =
  28. 28.110 − 60 =
  29. 29.104 − 92 =
  30. 30.81 − 60 =
  31. 31.219 − 190 =
  32. 32.312 − 280 =
  33. 33.522 − 498 =
  34. 34.102 − 95 =
  35. 35.503 − 493 =
  36. 36.74 − 34 =
  37. 37.513 − 498 =
  38. 38.530 − 495 =
  39. 39.1014 − 998 =
  40. 40.55 − 38 =

Answer key

  1. 9
  2. 27
  3. 29
  4. 5
  5. 45
  6. 29
  7. 8
  8. 27
  9. 24
  10. 47
  11. 30
  12. 31
  13. 21
  14. 21
  15. 30
  16. 10
  17. 41
  18. 34
  19. 16
  20. 12
  21. 15
  22. 48
  23. 48
  24. 33
  25. 26
  26. 31
  27. 15
  28. 50
  29. 12
  30. 21
  31. 29
  32. 32
  33. 24
  34. 7
  35. 10
  36. 40
  37. 15
  38. 35
  39. 16
  40. 17

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