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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 206 · 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. 1.55 − 47 =
  2. 2.312 − 283 =
  3. 3.51 − 34 =
  4. 4.1002 − 992 =
  5. 5.205 − 179 =
  6. 6.324 − 276 =
  7. 7.1019 − 992 =
  8. 8.311 − 281 =
  9. 9.327 − 279 =
  10. 10.75 − 36 =
  11. 11.59 − 25 =
  12. 12.1009 − 993 =
  13. 13.316 − 293 =
  14. 14.83 − 76 =
  15. 15.104 − 79 =
  16. 16.107 − 56 =
  17. 17.517 − 478 =
  18. 18.105 − 85 =
  19. 19.224 − 179 =
  20. 20.213 − 190 =
  21. 21.224 − 196 =
  22. 22.518 − 486 =
  23. 23.1019 − 980 =
  24. 24.109 − 82 =
  25. 25.211 − 184 =
  26. 26.521 − 493 =
  27. 27.512 − 498 =
  28. 28.1009 − 992 =
  29. 29.204 − 193 =
  30. 30.1020 − 984 =
  31. 31.213 − 177 =
  32. 32.86 − 56 =
  33. 33.84 − 68 =
  34. 34.104 − 89 =
  35. 35.106 − 63 =
  36. 36.219 − 178 =
  37. 37.313 − 293 =
  38. 38.528 − 487 =
  39. 39.120 − 81 =
  40. 40.220 − 189 =

Answer key

  1. 8
  2. 29
  3. 17
  4. 10
  5. 26
  6. 48
  7. 27
  8. 30
  9. 48
  10. 39
  11. 34
  12. 16
  13. 23
  14. 7
  15. 25
  16. 51
  17. 39
  18. 20
  19. 45
  20. 23
  21. 28
  22. 32
  23. 39
  24. 27
  25. 27
  26. 28
  27. 14
  28. 17
  29. 11
  30. 36
  31. 36
  32. 30
  33. 16
  34. 15
  35. 43
  36. 41
  37. 20
  38. 41
  39. 39
  40. 31

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