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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 529 · 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. 1.524 − 481 =
  2. 2.304 − 291 =
  3. 3.1007 − 995 =
  4. 4.78 − 39 =
  5. 5.118 − 83 =
  6. 6.62 − 31 =
  7. 7.505 − 488 =
  8. 8.207 − 198 =
  9. 9.228 − 190 =
  10. 10.1029 − 993 =
  11. 11.111 − 95 =
  12. 12.215 − 187 =
  13. 13.114 − 80 =
  14. 14.1017 − 998 =
  15. 15.509 − 494 =
  16. 16.516 − 481 =
  17. 17.89 − 61 =
  18. 18.79 − 27 =
  19. 19.92 − 70 =
  20. 20.1015 − 979 =
  21. 21.122 − 87 =
  22. 22.314 − 287 =
  23. 23.76 − 38 =
  24. 24.214 − 190 =
  25. 25.52 − 29 =
  26. 26.325 − 278 =
  27. 27.110 − 84 =
  28. 28.314 − 283 =
  29. 29.104 − 71 =
  30. 30.508 − 492 =
  31. 31.308 − 288 =
  32. 32.68 − 25 =
  33. 33.222 − 195 =
  34. 34.120 − 92 =
  35. 35.98 − 74 =
  36. 36.83 − 75 =
  37. 37.62 − 33 =
  38. 38.59 − 29 =
  39. 39.93 − 56 =
  40. 40.118 − 77 =

Answer key

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

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