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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 559 · 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. 1.224 − 198 =
  2. 2.201 − 178 =
  3. 3.51 − 47 =
  4. 4.100 − 67 =
  5. 5.502 − 482 =
  6. 6.114 − 88 =
  7. 7.321 − 286 =
  8. 8.102 − 75 =
  9. 9.1027 − 987 =
  10. 10.1012 − 976 =
  11. 11.218 − 186 =
  12. 12.207 − 178 =
  13. 13.124 − 90 =
  14. 14.1007 − 998 =
  15. 15.53 − 25 =
  16. 16.307 − 288 =
  17. 17.209 − 193 =
  18. 18.102 − 65 =
  19. 19.320 − 279 =
  20. 20.71 − 26 =
  21. 21.511 − 485 =
  22. 22.69 − 37 =
  23. 23.306 − 286 =
  24. 24.225 − 187 =
  25. 25.104 − 96 =
  26. 26.1018 − 978 =
  27. 27.74 − 43 =
  28. 28.521 − 493 =
  29. 29.72 − 45 =
  30. 30.506 − 477 =
  31. 31.509 − 494 =
  32. 32.67 − 28 =
  33. 33.307 − 296 =
  34. 34.212 − 193 =
  35. 35.501 − 495 =
  36. 36.52 − 44 =
  37. 37.217 − 179 =
  38. 38.104 − 92 =
  39. 39.78 − 42 =
  40. 40.70 − 42 =

Answer key

  1. 26
  2. 23
  3. 4
  4. 33
  5. 20
  6. 26
  7. 35
  8. 27
  9. 40
  10. 36
  11. 32
  12. 29
  13. 34
  14. 9
  15. 28
  16. 19
  17. 16
  18. 37
  19. 41
  20. 45
  21. 26
  22. 32
  23. 20
  24. 38
  25. 8
  26. 40
  27. 31
  28. 28
  29. 27
  30. 29
  31. 15
  32. 39
  33. 11
  34. 19
  35. 6
  36. 8
  37. 38
  38. 12
  39. 36
  40. 28

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