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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 114 · 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. 1.309 − 283 =
  2. 2.53 − 42 =
  3. 3.212 − 197 =
  4. 4.93 − 60 =
  5. 5.517 − 476 =
  6. 6.322 − 295 =
  7. 7.1029 − 988 =
  8. 8.107 − 78 =
  9. 9.1001 − 994 =
  10. 10.516 − 493 =
  11. 11.52 − 35 =
  12. 12.86 − 77 =
  13. 13.109 − 56 =
  14. 14.1025 − 995 =
  15. 15.218 − 197 =
  16. 16.223 − 193 =
  17. 17.118 − 83 =
  18. 18.1026 − 979 =
  19. 19.219 − 178 =
  20. 20.205 − 197 =
  21. 21.55 − 39 =
  22. 22.520 − 477 =
  23. 23.1005 − 987 =
  24. 24.528 − 492 =
  25. 25.90 − 59 =
  26. 26.208 − 196 =
  27. 27.520 − 484 =
  28. 28.105 − 89 =
  29. 29.329 − 280 =
  30. 30.523 − 496 =
  31. 31.66 − 37 =
  32. 32.129 − 87 =
  33. 33.207 − 192 =
  34. 34.521 − 477 =
  35. 35.101 − 75 =
  36. 36.99 − 62 =
  37. 37.57 − 35 =
  38. 38.517 − 497 =
  39. 39.56 − 44 =
  40. 40.106 − 95 =

Answer key

  1. 26
  2. 11
  3. 15
  4. 33
  5. 41
  6. 27
  7. 41
  8. 29
  9. 7
  10. 23
  11. 17
  12. 9
  13. 53
  14. 30
  15. 21
  16. 30
  17. 35
  18. 47
  19. 41
  20. 8
  21. 16
  22. 43
  23. 18
  24. 36
  25. 31
  26. 12
  27. 36
  28. 16
  29. 49
  30. 27
  31. 29
  32. 42
  33. 15
  34. 44
  35. 26
  36. 37
  37. 22
  38. 20
  39. 12
  40. 11

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