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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 876 · 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. 1.52 − 43 =
  2. 2.302 − 278 =
  3. 3.327 − 298 =
  4. 4.513 − 483 =
  5. 5.111 − 94 =
  6. 6.51 − 43 =
  7. 7.93 − 59 =
  8. 8.216 − 198 =
  9. 9.78 − 32 =
  10. 10.518 − 494 =
  11. 11.330 − 286 =
  12. 12.1004 − 998 =
  13. 13.77 − 38 =
  14. 14.83 − 73 =
  15. 15.1019 − 980 =
  16. 16.1010 − 993 =
  17. 17.109 − 82 =
  18. 18.82 − 70 =
  19. 19.327 − 292 =
  20. 20.1013 − 993 =
  21. 21.306 − 287 =
  22. 22.226 − 193 =
  23. 23.94 − 70 =
  24. 24.215 − 197 =
  25. 25.515 − 496 =
  26. 26.227 − 183 =
  27. 27.506 − 481 =
  28. 28.511 − 479 =
  29. 29.120 − 88 =
  30. 30.303 − 295 =
  31. 31.524 − 496 =
  32. 32.516 − 475 =
  33. 33.100 − 68 =
  34. 34.219 − 192 =
  35. 35.56 − 34 =
  36. 36.114 − 96 =
  37. 37.1018 − 981 =
  38. 38.1013 − 992 =
  39. 39.226 − 183 =
  40. 40.519 − 491 =

Answer key

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

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