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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 740 · 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. 1.303 − 276 =
  2. 2.99 − 65 =
  3. 3.130 − 87 =
  4. 4.109 − 96 =
  5. 5.122 − 77 =
  6. 6.208 − 178 =
  7. 7.218 − 187 =
  8. 8.109 − 90 =
  9. 9.228 − 191 =
  10. 10.217 − 196 =
  11. 11.325 − 276 =
  12. 12.308 − 276 =
  13. 13.96 − 56 =
  14. 14.82 − 76 =
  15. 15.205 − 198 =
  16. 16.224 − 194 =
  17. 17.66 − 25 =
  18. 18.72 − 28 =
  19. 19.1030 − 996 =
  20. 20.312 − 282 =
  21. 21.56 − 38 =
  22. 22.530 − 497 =
  23. 23.224 − 192 =
  24. 24.311 − 289 =
  25. 25.69 − 43 =
  26. 26.130 − 88 =
  27. 27.79 − 32 =
  28. 28.220 − 189 =
  29. 29.89 − 77 =
  30. 30.52 − 31 =
  31. 31.221 − 190 =
  32. 32.106 − 77 =
  33. 33.314 − 294 =
  34. 34.502 − 497 =
  35. 35.67 − 37 =
  36. 36.57 − 40 =
  37. 37.109 − 93 =
  38. 38.313 − 296 =
  39. 39.505 − 488 =
  40. 40.124 − 96 =

Answer key

  1. 27
  2. 34
  3. 43
  4. 13
  5. 45
  6. 30
  7. 31
  8. 19
  9. 37
  10. 21
  11. 49
  12. 32
  13. 40
  14. 6
  15. 7
  16. 30
  17. 41
  18. 44
  19. 34
  20. 30
  21. 18
  22. 33
  23. 32
  24. 22
  25. 26
  26. 42
  27. 47
  28. 31
  29. 12
  30. 21
  31. 31
  32. 29
  33. 20
  34. 5
  35. 30
  36. 17
  37. 16
  38. 17
  39. 17
  40. 28

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