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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 198 · 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. 1.107 − 70 =
  2. 2.82 − 74 =
  3. 3.304 − 294 =
  4. 4.506 − 498 =
  5. 5.112 − 81 =
  6. 6.1010 − 991 =
  7. 7.108 − 78 =
  8. 8.84 − 76 =
  9. 9.63 − 30 =
  10. 10.509 − 496 =
  11. 11.108 − 94 =
  12. 12.302 − 277 =
  13. 13.54 − 28 =
  14. 14.70 − 31 =
  15. 15.206 − 196 =
  16. 16.94 − 57 =
  17. 17.127 − 94 =
  18. 18.124 − 83 =
  19. 19.106 − 98 =
  20. 20.318 − 291 =
  21. 21.212 − 189 =
  22. 22.82 − 68 =
  23. 23.201 − 195 =
  24. 24.206 − 181 =
  25. 25.67 − 43 =
  26. 26.222 − 188 =
  27. 27.81 − 57 =
  28. 28.99 − 60 =
  29. 29.130 − 89 =
  30. 30.86 − 77 =
  31. 31.1001 − 981 =
  32. 32.204 − 176 =
  33. 33.1005 − 981 =
  34. 34.203 − 179 =
  35. 35.53 − 33 =
  36. 36.1007 − 987 =
  37. 37.1006 − 986 =
  38. 38.1018 − 979 =
  39. 39.58 − 35 =
  40. 40.96 − 71 =

Answer key

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

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