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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 394 · 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. 1.211 − 183 =
  2. 2.109 − 67 =
  3. 3.88 − 65 =
  4. 4.519 − 486 =
  5. 5.104 − 97 =
  6. 6.1008 − 984 =
  7. 7.71 − 34 =
  8. 8.1030 − 981 =
  9. 9.75 − 41 =
  10. 10.85 − 61 =
  11. 11.62 − 31 =
  12. 12.93 − 77 =
  13. 13.322 − 287 =
  14. 14.207 − 180 =
  15. 15.519 − 489 =
  16. 16.61 − 41 =
  17. 17.1006 − 990 =
  18. 18.78 − 26 =
  19. 19.1009 − 977 =
  20. 20.309 − 275 =
  21. 21.225 − 186 =
  22. 22.1004 − 993 =
  23. 23.128 − 78 =
  24. 24.502 − 496 =
  25. 25.59 − 47 =
  26. 26.71 − 48 =
  27. 27.327 − 288 =
  28. 28.1007 − 994 =
  29. 29.82 − 75 =
  30. 30.81 − 74 =
  31. 31.88 − 71 =
  32. 32.1008 − 980 =
  33. 33.80 − 39 =
  34. 34.229 − 197 =
  35. 35.230 − 187 =
  36. 36.303 − 292 =
  37. 37.113 − 92 =
  38. 38.310 − 276 =
  39. 39.78 − 34 =
  40. 40.310 − 283 =

Answer key

  1. 28
  2. 42
  3. 23
  4. 33
  5. 7
  6. 24
  7. 37
  8. 49
  9. 34
  10. 24
  11. 31
  12. 16
  13. 35
  14. 27
  15. 30
  16. 20
  17. 16
  18. 52
  19. 32
  20. 34
  21. 39
  22. 11
  23. 50
  24. 6
  25. 12
  26. 23
  27. 39
  28. 13
  29. 7
  30. 7
  31. 17
  32. 28
  33. 41
  34. 32
  35. 43
  36. 11
  37. 21
  38. 34
  39. 44
  40. 27

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