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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 211 · 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. 1.60 − 25 =
  2. 2.85 − 76 =
  3. 3.227 − 195 =
  4. 4.65 − 28 =
  5. 5.1019 − 986 =
  6. 6.313 − 288 =
  7. 7.104 − 84 =
  8. 8.68 − 32 =
  9. 9.125 − 94 =
  10. 10.105 − 69 =
  11. 11.308 − 291 =
  12. 12.1010 − 976 =
  13. 13.55 − 43 =
  14. 14.96 − 72 =
  15. 15.214 − 198 =
  16. 16.57 − 30 =
  17. 17.508 − 487 =
  18. 18.521 − 487 =
  19. 19.102 − 58 =
  20. 20.307 − 293 =
  21. 21.522 − 482 =
  22. 22.305 − 294 =
  23. 23.105 − 81 =
  24. 24.99 − 72 =
  25. 25.226 − 192 =
  26. 26.1007 − 984 =
  27. 27.219 − 179 =
  28. 28.83 − 66 =
  29. 29.1015 − 979 =
  30. 30.1015 − 976 =
  31. 31.202 − 180 =
  32. 32.79 − 45 =
  33. 33.90 − 62 =
  34. 34.55 − 45 =
  35. 35.205 − 183 =
  36. 36.1023 − 994 =
  37. 37.62 − 26 =
  38. 38.87 − 66 =
  39. 39.120 − 80 =
  40. 40.1009 − 992 =

Answer key

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

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