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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 53 · 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. 1.53 − 48 =
  2. 2.227 − 178 =
  3. 3.223 − 194 =
  4. 4.93 − 72 =
  5. 5.109 − 56 =
  6. 6.326 − 297 =
  7. 7.213 − 197 =
  8. 8.1017 − 985 =
  9. 9.218 − 189 =
  10. 10.202 − 195 =
  11. 11.65 − 25 =
  12. 12.222 − 186 =
  13. 13.130 − 94 =
  14. 14.66 − 41 =
  15. 15.69 − 42 =
  16. 16.501 − 482 =
  17. 17.85 − 72 =
  18. 18.120 − 92 =
  19. 19.111 − 95 =
  20. 20.109 − 67 =
  21. 21.109 − 78 =
  22. 22.109 − 55 =
  23. 23.72 − 36 =
  24. 24.230 − 195 =
  25. 25.1024 − 986 =
  26. 26.211 − 191 =
  27. 27.72 − 29 =
  28. 28.84 − 66 =
  29. 29.113 − 93 =
  30. 30.221 − 185 =
  31. 31.114 − 78 =
  32. 32.1020 − 986 =
  33. 33.303 − 287 =
  34. 34.60 − 25 =
  35. 35.120 − 76 =
  36. 36.130 − 88 =
  37. 37.105 − 56 =
  38. 38.101 − 80 =
  39. 39.530 − 481 =
  40. 40.1020 − 985 =

Answer key

  1. 5
  2. 49
  3. 29
  4. 21
  5. 53
  6. 29
  7. 16
  8. 32
  9. 29
  10. 7
  11. 40
  12. 36
  13. 36
  14. 25
  15. 27
  16. 19
  17. 13
  18. 28
  19. 16
  20. 42
  21. 31
  22. 54
  23. 36
  24. 35
  25. 38
  26. 20
  27. 43
  28. 18
  29. 20
  30. 36
  31. 36
  32. 34
  33. 16
  34. 35
  35. 44
  36. 42
  37. 49
  38. 21
  39. 49
  40. 35

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