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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 317 · 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. 1.325 − 291 =
  2. 2.54 − 48 =
  3. 3.217 − 180 =
  4. 4.101 − 95 =
  5. 5.89 − 62 =
  6. 6.73 − 46 =
  7. 7.65 − 39 =
  8. 8.505 − 492 =
  9. 9.304 − 298 =
  10. 10.113 − 78 =
  11. 11.226 − 175 =
  12. 12.303 − 284 =
  13. 13.305 − 295 =
  14. 14.63 − 27 =
  15. 15.102 − 75 =
  16. 16.522 − 497 =
  17. 17.1009 − 997 =
  18. 18.221 − 193 =
  19. 19.507 − 484 =
  20. 20.109 − 60 =
  21. 21.1023 − 978 =
  22. 22.94 − 75 =
  23. 23.507 − 485 =
  24. 24.130 − 92 =
  25. 25.330 − 276 =
  26. 26.70 − 35 =
  27. 27.63 − 33 =
  28. 28.53 − 29 =
  29. 29.514 − 483 =
  30. 30.103 − 61 =
  31. 31.61 − 36 =
  32. 32.104 − 88 =
  33. 33.506 − 493 =
  34. 34.202 − 191 =
  35. 35.81 − 72 =
  36. 36.88 − 69 =
  37. 37.101 − 67 =
  38. 38.215 − 187 =
  39. 39.105 − 63 =
  40. 40.520 − 491 =

Answer key

  1. 34
  2. 6
  3. 37
  4. 6
  5. 27
  6. 27
  7. 26
  8. 13
  9. 6
  10. 35
  11. 51
  12. 19
  13. 10
  14. 36
  15. 27
  16. 25
  17. 12
  18. 28
  19. 23
  20. 49
  21. 45
  22. 19
  23. 22
  24. 38
  25. 54
  26. 35
  27. 30
  28. 24
  29. 31
  30. 42
  31. 25
  32. 16
  33. 13
  34. 11
  35. 9
  36. 19
  37. 34
  38. 28
  39. 42
  40. 29

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