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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 433 · 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. 1.223 − 175 =
  2. 2.209 − 189 =
  3. 3.206 − 194 =
  4. 4.524 − 494 =
  5. 5.115 − 78 =
  6. 6.217 − 198 =
  7. 7.306 − 295 =
  8. 8.109 − 72 =
  9. 9.53 − 34 =
  10. 10.513 − 491 =
  11. 11.317 − 290 =
  12. 12.1011 − 995 =
  13. 13.304 − 297 =
  14. 14.319 − 297 =
  15. 15.207 − 185 =
  16. 16.81 − 55 =
  17. 17.101 − 83 =
  18. 18.1030 − 984 =
  19. 19.520 − 492 =
  20. 20.323 − 280 =
  21. 21.92 − 78 =
  22. 22.83 − 58 =
  23. 23.304 − 298 =
  24. 24.320 − 280 =
  25. 25.305 − 277 =
  26. 26.230 − 186 =
  27. 27.317 − 286 =
  28. 28.215 − 191 =
  29. 29.529 − 493 =
  30. 30.89 − 75 =
  31. 31.126 − 81 =
  32. 32.524 − 478 =
  33. 33.217 − 194 =
  34. 34.1018 − 996 =
  35. 35.1004 − 983 =
  36. 36.303 − 295 =
  37. 37.214 − 196 =
  38. 38.101 − 87 =
  39. 39.1003 − 996 =
  40. 40.203 − 194 =

Answer key

  1. 48
  2. 20
  3. 12
  4. 30
  5. 37
  6. 19
  7. 11
  8. 37
  9. 19
  10. 22
  11. 27
  12. 16
  13. 7
  14. 22
  15. 22
  16. 26
  17. 18
  18. 46
  19. 28
  20. 43
  21. 14
  22. 25
  23. 6
  24. 40
  25. 28
  26. 44
  27. 31
  28. 24
  29. 36
  30. 14
  31. 45
  32. 46
  33. 23
  34. 22
  35. 21
  36. 8
  37. 18
  38. 14
  39. 7
  40. 9

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