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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 55 · 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. 1.82 − 60 =
  2. 2.1002 − 977 =
  3. 3.1001 − 986 =
  4. 4.202 − 196 =
  5. 5.74 − 43 =
  6. 6.86 − 57 =
  7. 7.1030 − 981 =
  8. 8.522 − 485 =
  9. 9.510 − 490 =
  10. 10.103 − 62 =
  11. 11.127 − 88 =
  12. 12.89 − 76 =
  13. 13.84 − 77 =
  14. 14.102 − 75 =
  15. 15.1005 − 998 =
  16. 16.93 − 57 =
  17. 17.225 − 175 =
  18. 18.326 − 279 =
  19. 19.1021 − 981 =
  20. 20.502 − 486 =
  21. 21.527 − 487 =
  22. 22.120 − 79 =
  23. 23.1024 − 977 =
  24. 24.94 − 57 =
  25. 25.210 − 196 =
  26. 26.53 − 25 =
  27. 27.99 − 71 =
  28. 28.1003 − 987 =
  29. 29.103 − 64 =
  30. 30.223 − 189 =
  31. 31.87 − 61 =
  32. 32.311 − 291 =
  33. 33.127 − 96 =
  34. 34.1006 − 981 =
  35. 35.107 − 88 =
  36. 36.57 − 27 =
  37. 37.206 − 179 =
  38. 38.88 − 55 =
  39. 39.529 − 494 =
  40. 40.74 − 27 =

Answer key

  1. 22
  2. 25
  3. 15
  4. 6
  5. 31
  6. 29
  7. 49
  8. 37
  9. 20
  10. 41
  11. 39
  12. 13
  13. 7
  14. 27
  15. 7
  16. 36
  17. 50
  18. 47
  19. 40
  20. 16
  21. 40
  22. 41
  23. 47
  24. 37
  25. 14
  26. 28
  27. 28
  28. 16
  29. 39
  30. 34
  31. 26
  32. 20
  33. 31
  34. 25
  35. 19
  36. 30
  37. 27
  38. 33
  39. 35
  40. 47

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