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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 54 · 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. 1.98 − 57 =
  2. 2.514 − 479 =
  3. 3.227 − 193 =
  4. 4.106 − 77 =
  5. 5.1010 − 996 =
  6. 6.514 − 497 =
  7. 7.1021 − 979 =
  8. 8.115 − 87 =
  9. 9.64 − 26 =
  10. 10.84 − 75 =
  11. 11.57 − 37 =
  12. 12.1027 − 976 =
  13. 13.77 − 48 =
  14. 14.508 − 491 =
  15. 15.202 − 185 =
  16. 16.92 − 71 =
  17. 17.87 − 75 =
  18. 18.504 − 496 =
  19. 19.217 − 192 =
  20. 20.221 − 191 =
  21. 21.119 − 80 =
  22. 22.126 − 79 =
  23. 23.522 − 476 =
  24. 24.79 − 44 =
  25. 25.303 − 291 =
  26. 26.85 − 64 =
  27. 27.81 − 56 =
  28. 28.522 − 490 =
  29. 29.125 − 92 =
  30. 30.105 − 97 =
  31. 31.520 − 493 =
  32. 32.80 − 42 =
  33. 33.225 − 189 =
  34. 34.226 − 188 =
  35. 35.202 − 198 =
  36. 36.305 − 284 =
  37. 37.324 − 291 =
  38. 38.330 − 296 =
  39. 39.211 − 195 =
  40. 40.51 − 47 =

Answer key

  1. 41
  2. 35
  3. 34
  4. 29
  5. 14
  6. 17
  7. 42
  8. 28
  9. 38
  10. 9
  11. 20
  12. 51
  13. 29
  14. 17
  15. 17
  16. 21
  17. 12
  18. 8
  19. 25
  20. 30
  21. 39
  22. 47
  23. 46
  24. 35
  25. 12
  26. 21
  27. 25
  28. 32
  29. 33
  30. 8
  31. 27
  32. 38
  33. 36
  34. 38
  35. 4
  36. 21
  37. 33
  38. 34
  39. 16
  40. 4

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