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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 86 · 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. 1.84 − 62 =
  2. 2.59 − 32 =
  3. 3.82 − 74 =
  4. 4.1007 − 993 =
  5. 5.88 − 66 =
  6. 6.52 − 42 =
  7. 7.64 − 30 =
  8. 8.506 − 477 =
  9. 9.505 − 478 =
  10. 10.324 − 297 =
  11. 11.78 − 32 =
  12. 12.51 − 37 =
  13. 13.121 − 90 =
  14. 14.312 − 288 =
  15. 15.79 − 47 =
  16. 16.302 − 293 =
  17. 17.501 − 482 =
  18. 18.96 − 76 =
  19. 19.509 − 480 =
  20. 20.1016 − 995 =
  21. 21.110 − 96 =
  22. 22.305 − 276 =
  23. 23.209 − 196 =
  24. 24.1012 − 988 =
  25. 25.520 − 496 =
  26. 26.302 − 298 =
  27. 27.51 − 32 =
  28. 28.503 − 494 =
  29. 29.71 − 41 =
  30. 30.527 − 495 =
  31. 31.78 − 28 =
  32. 32.122 − 93 =
  33. 33.505 − 486 =
  34. 34.508 − 498 =
  35. 35.53 − 43 =
  36. 36.526 − 491 =
  37. 37.311 − 296 =
  38. 38.219 − 180 =
  39. 39.98 − 60 =
  40. 40.301 − 278 =

Answer key

  1. 22
  2. 27
  3. 8
  4. 14
  5. 22
  6. 10
  7. 34
  8. 29
  9. 27
  10. 27
  11. 46
  12. 14
  13. 31
  14. 24
  15. 32
  16. 9
  17. 19
  18. 20
  19. 29
  20. 21
  21. 14
  22. 29
  23. 13
  24. 24
  25. 24
  26. 4
  27. 19
  28. 9
  29. 30
  30. 32
  31. 50
  32. 29
  33. 19
  34. 10
  35. 10
  36. 35
  37. 15
  38. 39
  39. 38
  40. 23

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