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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 295 · 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. 1.1018 − 993 =
  2. 2.513 − 490 =
  3. 3.101 − 55 =
  4. 4.63 − 25 =
  5. 5.1025 − 993 =
  6. 6.64 − 38 =
  7. 7.224 − 179 =
  8. 8.317 − 292 =
  9. 9.81 − 75 =
  10. 10.51 − 34 =
  11. 11.505 − 485 =
  12. 12.105 − 97 =
  13. 13.525 − 480 =
  14. 14.108 − 75 =
  15. 15.102 − 62 =
  16. 16.315 − 277 =
  17. 17.330 − 291 =
  18. 18.221 − 190 =
  19. 19.126 − 82 =
  20. 20.329 − 288 =
  21. 21.314 − 297 =
  22. 22.1002 − 993 =
  23. 23.206 − 196 =
  24. 24.1018 − 976 =
  25. 25.526 − 485 =
  26. 26.301 − 291 =
  27. 27.59 − 35 =
  28. 28.82 − 67 =
  29. 29.69 − 40 =
  30. 30.56 − 29 =
  31. 31.106 − 75 =
  32. 32.1020 − 990 =
  33. 33.109 − 93 =
  34. 34.56 − 34 =
  35. 35.95 − 58 =
  36. 36.219 − 177 =
  37. 37.79 − 46 =
  38. 38.52 − 31 =
  39. 39.219 − 183 =
  40. 40.225 − 187 =

Answer key

  1. 25
  2. 23
  3. 46
  4. 38
  5. 32
  6. 26
  7. 45
  8. 25
  9. 6
  10. 17
  11. 20
  12. 8
  13. 45
  14. 33
  15. 40
  16. 38
  17. 39
  18. 31
  19. 44
  20. 41
  21. 17
  22. 9
  23. 10
  24. 42
  25. 41
  26. 10
  27. 24
  28. 15
  29. 29
  30. 27
  31. 31
  32. 30
  33. 16
  34. 22
  35. 37
  36. 42
  37. 33
  38. 21
  39. 36
  40. 38

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