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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 298 · 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. 1.108 − 95 =
  2. 2.112 − 88 =
  3. 3.88 − 69 =
  4. 4.1002 − 994 =
  5. 5.213 − 184 =
  6. 6.57 − 47 =
  7. 7.52 − 28 =
  8. 8.129 − 89 =
  9. 9.509 − 478 =
  10. 10.83 − 66 =
  11. 11.515 − 498 =
  12. 12.1014 − 997 =
  13. 13.68 − 27 =
  14. 14.97 − 73 =
  15. 15.514 − 494 =
  16. 16.116 − 77 =
  17. 17.1021 − 990 =
  18. 18.101 − 96 =
  19. 19.508 − 477 =
  20. 20.79 − 43 =
  21. 21.117 − 90 =
  22. 22.513 − 479 =
  23. 23.59 − 38 =
  24. 24.1027 − 992 =
  25. 25.526 − 496 =
  26. 26.527 − 477 =
  27. 27.69 − 37 =
  28. 28.513 − 489 =
  29. 29.517 − 479 =
  30. 30.302 − 282 =
  31. 31.66 − 35 =
  32. 32.319 − 286 =
  33. 33.1026 − 995 =
  34. 34.102 − 63 =
  35. 35.310 − 282 =
  36. 36.83 − 65 =
  37. 37.77 − 29 =
  38. 38.82 − 64 =
  39. 39.1011 − 993 =
  40. 40.65 − 28 =

Answer key

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

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