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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 221 · 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. 1.1007 − 976 =
  2. 2.1026 − 984 =
  3. 3.1019 − 997 =
  4. 4.219 − 186 =
  5. 5.520 − 484 =
  6. 6.58 − 42 =
  7. 7.59 − 42 =
  8. 8.82 − 63 =
  9. 9.1003 − 998 =
  10. 10.68 − 33 =
  11. 11.101 − 92 =
  12. 12.83 − 70 =
  13. 13.91 − 78 =
  14. 14.312 − 281 =
  15. 15.304 − 287 =
  16. 16.105 − 94 =
  17. 17.89 − 67 =
  18. 18.71 − 43 =
  19. 19.325 − 297 =
  20. 20.505 − 484 =
  21. 21.1002 − 979 =
  22. 22.94 − 72 =
  23. 23.80 − 40 =
  24. 24.84 − 61 =
  25. 25.94 − 75 =
  26. 26.99 − 77 =
  27. 27.96 − 72 =
  28. 28.104 − 77 =
  29. 29.53 − 30 =
  30. 30.64 − 29 =
  31. 31.120 − 97 =
  32. 32.505 − 495 =
  33. 33.501 − 497 =
  34. 34.1005 − 988 =
  35. 35.82 − 78 =
  36. 36.57 − 25 =
  37. 37.519 − 490 =
  38. 38.320 − 283 =
  39. 39.61 − 38 =
  40. 40.88 − 62 =

Answer key

  1. 31
  2. 42
  3. 22
  4. 33
  5. 36
  6. 16
  7. 17
  8. 19
  9. 5
  10. 35
  11. 9
  12. 13
  13. 13
  14. 31
  15. 17
  16. 11
  17. 22
  18. 28
  19. 28
  20. 21
  21. 23
  22. 22
  23. 40
  24. 23
  25. 19
  26. 22
  27. 24
  28. 27
  29. 23
  30. 35
  31. 23
  32. 10
  33. 4
  34. 17
  35. 4
  36. 32
  37. 29
  38. 37
  39. 23
  40. 26

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