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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 443 · 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. 1.503 − 475 =
  2. 2.102 − 64 =
  3. 3.85 − 63 =
  4. 4.214 − 178 =
  5. 5.82 − 56 =
  6. 6.93 − 66 =
  7. 7.507 − 495 =
  8. 8.127 − 89 =
  9. 9.204 − 195 =
  10. 10.86 − 61 =
  11. 11.303 − 296 =
  12. 12.1013 − 989 =
  13. 13.53 − 45 =
  14. 14.315 − 277 =
  15. 15.1023 − 989 =
  16. 16.323 − 289 =
  17. 17.521 − 498 =
  18. 18.521 − 475 =
  19. 19.328 − 276 =
  20. 20.229 − 187 =
  21. 21.203 − 195 =
  22. 22.308 − 295 =
  23. 23.203 − 183 =
  24. 24.323 − 288 =
  25. 25.527 − 480 =
  26. 26.66 − 29 =
  27. 27.80 − 28 =
  28. 28.95 − 58 =
  29. 29.1027 − 997 =
  30. 30.69 − 46 =
  31. 31.75 − 39 =
  32. 32.512 − 489 =
  33. 33.62 − 36 =
  34. 34.124 − 94 =
  35. 35.209 − 180 =
  36. 36.225 − 183 =
  37. 37.519 − 493 =
  38. 38.75 − 43 =
  39. 39.1009 − 996 =
  40. 40.110 − 75 =

Answer key

  1. 28
  2. 38
  3. 22
  4. 36
  5. 26
  6. 27
  7. 12
  8. 38
  9. 9
  10. 25
  11. 7
  12. 24
  13. 8
  14. 38
  15. 34
  16. 34
  17. 23
  18. 46
  19. 52
  20. 42
  21. 8
  22. 13
  23. 20
  24. 35
  25. 47
  26. 37
  27. 52
  28. 37
  29. 30
  30. 23
  31. 36
  32. 23
  33. 26
  34. 30
  35. 29
  36. 42
  37. 26
  38. 32
  39. 13
  40. 35

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