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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 35 · 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. 1.62 − 26 =
  2. 2.105 − 88 =
  3. 3.221 − 177 =
  4. 4.67 − 29 =
  5. 5.111 − 75 =
  6. 6.230 − 180 =
  7. 7.81 − 69 =
  8. 8.323 − 285 =
  9. 9.81 − 72 =
  10. 10.207 − 182 =
  11. 11.206 − 180 =
  12. 12.107 − 95 =
  13. 13.308 − 298 =
  14. 14.215 − 182 =
  15. 15.222 − 189 =
  16. 16.92 − 68 =
  17. 17.82 − 62 =
  18. 18.226 − 196 =
  19. 19.105 − 83 =
  20. 20.65 − 43 =
  21. 21.1014 − 986 =
  22. 22.216 − 195 =
  23. 23.91 − 66 =
  24. 24.111 − 77 =
  25. 25.112 − 81 =
  26. 26.84 − 63 =
  27. 27.206 − 191 =
  28. 28.217 − 176 =
  29. 29.207 − 177 =
  30. 30.61 − 36 =
  31. 31.319 − 287 =
  32. 32.84 − 74 =
  33. 33.320 − 292 =
  34. 34.121 − 86 =
  35. 35.305 − 287 =
  36. 36.227 − 196 =
  37. 37.102 − 91 =
  38. 38.1015 − 995 =
  39. 39.77 − 30 =
  40. 40.305 − 292 =

Answer key

  1. 36
  2. 17
  3. 44
  4. 38
  5. 36
  6. 50
  7. 12
  8. 38
  9. 9
  10. 25
  11. 26
  12. 12
  13. 10
  14. 33
  15. 33
  16. 24
  17. 20
  18. 30
  19. 22
  20. 22
  21. 28
  22. 21
  23. 25
  24. 34
  25. 31
  26. 21
  27. 15
  28. 41
  29. 30
  30. 25
  31. 32
  32. 10
  33. 28
  34. 35
  35. 18
  36. 31
  37. 11
  38. 20
  39. 47
  40. 13

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