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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 872 · 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. 1.99 − 76 =
  2. 2.82 − 75 =
  3. 3.64 − 38 =
  4. 4.1007 − 995 =
  5. 5.75 − 37 =
  6. 6.212 − 194 =
  7. 7.226 − 190 =
  8. 8.1011 − 978 =
  9. 9.87 − 58 =
  10. 10.57 − 42 =
  11. 11.1026 − 995 =
  12. 12.214 − 184 =
  13. 13.310 − 290 =
  14. 14.302 − 295 =
  15. 15.220 − 183 =
  16. 16.311 − 286 =
  17. 17.202 − 178 =
  18. 18.222 − 185 =
  19. 19.66 − 47 =
  20. 20.220 − 181 =
  21. 21.57 − 40 =
  22. 22.1028 − 985 =
  23. 23.325 − 275 =
  24. 24.202 − 186 =
  25. 25.123 − 87 =
  26. 26.527 − 489 =
  27. 27.62 − 44 =
  28. 28.309 − 292 =
  29. 29.57 − 36 =
  30. 30.225 − 192 =
  31. 31.1026 − 987 =
  32. 32.1013 − 980 =
  33. 33.69 − 48 =
  34. 34.303 − 293 =
  35. 35.51 − 35 =
  36. 36.103 − 96 =
  37. 37.108 − 72 =
  38. 38.63 − 40 =
  39. 39.502 − 495 =
  40. 40.124 − 87 =

Answer key

  1. 23
  2. 7
  3. 26
  4. 12
  5. 38
  6. 18
  7. 36
  8. 33
  9. 29
  10. 15
  11. 31
  12. 30
  13. 20
  14. 7
  15. 37
  16. 25
  17. 24
  18. 37
  19. 19
  20. 39
  21. 17
  22. 43
  23. 50
  24. 16
  25. 36
  26. 38
  27. 18
  28. 17
  29. 21
  30. 33
  31. 39
  32. 33
  33. 21
  34. 10
  35. 16
  36. 7
  37. 36
  38. 23
  39. 7
  40. 37

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