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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 853 · 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. 1.523 − 498 =
  2. 2.70 − 36 =
  3. 3.1023 − 977 =
  4. 4.1010 − 978 =
  5. 5.60 − 42 =
  6. 6.53 − 44 =
  7. 7.113 − 83 =
  8. 8.202 − 194 =
  9. 9.102 − 88 =
  10. 10.105 − 58 =
  11. 11.205 − 175 =
  12. 12.529 − 482 =
  13. 13.205 − 190 =
  14. 14.98 − 57 =
  15. 15.116 − 92 =
  16. 16.108 − 75 =
  17. 17.101 − 60 =
  18. 18.525 − 487 =
  19. 19.204 − 196 =
  20. 20.520 − 495 =
  21. 21.78 − 34 =
  22. 22.114 − 86 =
  23. 23.504 − 498 =
  24. 24.519 − 485 =
  25. 25.223 − 180 =
  26. 26.1018 − 981 =
  27. 27.219 − 175 =
  28. 28.78 − 31 =
  29. 29.103 − 97 =
  30. 30.307 − 280 =
  31. 31.218 − 197 =
  32. 32.211 − 178 =
  33. 33.513 − 488 =
  34. 34.207 − 184 =
  35. 35.506 − 491 =
  36. 36.205 − 194 =
  37. 37.324 − 289 =
  38. 38.507 − 488 =
  39. 39.508 − 480 =
  40. 40.56 − 41 =

Answer key

  1. 25
  2. 34
  3. 46
  4. 32
  5. 18
  6. 9
  7. 30
  8. 8
  9. 14
  10. 47
  11. 30
  12. 47
  13. 15
  14. 41
  15. 24
  16. 33
  17. 41
  18. 38
  19. 8
  20. 25
  21. 44
  22. 28
  23. 6
  24. 34
  25. 43
  26. 37
  27. 44
  28. 47
  29. 6
  30. 27
  31. 21
  32. 33
  33. 25
  34. 23
  35. 15
  36. 11
  37. 35
  38. 19
  39. 28
  40. 15

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