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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 274 · 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. 1.81 − 77 =
  2. 2.87 − 66 =
  3. 3.206 − 192 =
  4. 4.98 − 57 =
  5. 5.318 − 278 =
  6. 6.1005 − 984 =
  7. 7.206 − 175 =
  8. 8.504 − 494 =
  9. 9.69 − 27 =
  10. 10.230 − 185 =
  11. 11.518 − 497 =
  12. 12.314 − 285 =
  13. 13.63 − 43 =
  14. 14.202 − 181 =
  15. 15.1010 − 996 =
  16. 16.1023 − 997 =
  17. 17.98 − 63 =
  18. 18.1024 − 977 =
  19. 19.1021 − 988 =
  20. 20.1002 − 993 =
  21. 21.1027 − 981 =
  22. 22.316 − 289 =
  23. 23.228 − 176 =
  24. 24.1026 − 996 =
  25. 25.125 − 81 =
  26. 26.1018 − 977 =
  27. 27.57 − 35 =
  28. 28.307 − 282 =
  29. 29.517 − 486 =
  30. 30.124 − 91 =
  31. 31.109 − 76 =
  32. 32.218 − 187 =
  33. 33.329 − 293 =
  34. 34.226 − 192 =
  35. 35.501 − 494 =
  36. 36.311 − 290 =
  37. 37.224 − 179 =
  38. 38.526 − 483 =
  39. 39.1020 − 981 =
  40. 40.71 − 48 =

Answer key

  1. 4
  2. 21
  3. 14
  4. 41
  5. 40
  6. 21
  7. 31
  8. 10
  9. 42
  10. 45
  11. 21
  12. 29
  13. 20
  14. 21
  15. 14
  16. 26
  17. 35
  18. 47
  19. 33
  20. 9
  21. 46
  22. 27
  23. 52
  24. 30
  25. 44
  26. 41
  27. 22
  28. 25
  29. 31
  30. 33
  31. 33
  32. 31
  33. 36
  34. 34
  35. 7
  36. 21
  37. 45
  38. 43
  39. 39
  40. 23

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