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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 384 · 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. 1.101 − 63 =
  2. 2.89 − 72 =
  3. 3.59 − 37 =
  4. 4.325 − 275 =
  5. 5.1004 − 979 =
  6. 6.101 − 95 =
  7. 7.503 − 497 =
  8. 8.1022 − 991 =
  9. 9.317 − 290 =
  10. 10.205 − 197 =
  11. 11.89 − 76 =
  12. 12.80 − 28 =
  13. 13.76 − 35 =
  14. 14.77 − 48 =
  15. 15.222 − 198 =
  16. 16.309 − 295 =
  17. 17.223 − 184 =
  18. 18.113 − 97 =
  19. 19.222 − 180 =
  20. 20.306 − 291 =
  21. 21.121 − 97 =
  22. 22.109 − 77 =
  23. 23.319 − 281 =
  24. 24.302 − 285 =
  25. 25.323 − 292 =
  26. 26.107 − 69 =
  27. 27.228 − 196 =
  28. 28.204 − 187 =
  29. 29.122 − 94 =
  30. 30.503 − 494 =
  31. 31.105 − 83 =
  32. 32.56 − 41 =
  33. 33.58 − 44 =
  34. 34.318 − 296 =
  35. 35.204 − 180 =
  36. 36.529 − 498 =
  37. 37.208 − 177 =
  38. 38.128 − 81 =
  39. 39.58 − 29 =
  40. 40.120 − 92 =

Answer key

  1. 38
  2. 17
  3. 22
  4. 50
  5. 25
  6. 6
  7. 6
  8. 31
  9. 27
  10. 8
  11. 13
  12. 52
  13. 41
  14. 29
  15. 24
  16. 14
  17. 39
  18. 16
  19. 42
  20. 15
  21. 24
  22. 32
  23. 38
  24. 17
  25. 31
  26. 38
  27. 32
  28. 17
  29. 28
  30. 9
  31. 22
  32. 15
  33. 14
  34. 22
  35. 24
  36. 31
  37. 31
  38. 47
  39. 29
  40. 28

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