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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 917 · 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. 1.220 − 193 =
  2. 2.328 − 282 =
  3. 3.85 − 67 =
  4. 4.1018 − 987 =
  5. 5.109 − 98 =
  6. 6.508 − 481 =
  7. 7.517 − 498 =
  8. 8.1010 − 990 =
  9. 9.217 − 184 =
  10. 10.65 − 32 =
  11. 11.528 − 492 =
  12. 12.301 − 298 =
  13. 13.112 − 97 =
  14. 14.92 − 61 =
  15. 15.63 − 39 =
  16. 16.315 − 289 =
  17. 17.77 − 41 =
  18. 18.83 − 56 =
  19. 19.227 − 178 =
  20. 20.304 − 289 =
  21. 21.62 − 42 =
  22. 22.514 − 491 =
  23. 23.1011 − 985 =
  24. 24.82 − 77 =
  25. 25.126 − 88 =
  26. 26.309 − 278 =
  27. 27.530 − 481 =
  28. 28.227 − 183 =
  29. 29.206 − 183 =
  30. 30.1006 − 979 =
  31. 31.54 − 29 =
  32. 32.225 − 176 =
  33. 33.225 − 193 =
  34. 34.329 − 286 =
  35. 35.92 − 62 =
  36. 36.311 − 297 =
  37. 37.220 − 192 =
  38. 38.509 − 482 =
  39. 39.216 − 190 =
  40. 40.522 − 491 =

Answer key

  1. 27
  2. 46
  3. 18
  4. 31
  5. 11
  6. 27
  7. 19
  8. 20
  9. 33
  10. 33
  11. 36
  12. 3
  13. 15
  14. 31
  15. 24
  16. 26
  17. 36
  18. 27
  19. 49
  20. 15
  21. 20
  22. 23
  23. 26
  24. 5
  25. 38
  26. 31
  27. 49
  28. 44
  29. 23
  30. 27
  31. 25
  32. 49
  33. 32
  34. 43
  35. 30
  36. 14
  37. 28
  38. 27
  39. 26
  40. 31

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