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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 573 · 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. 1.130 − 88 =
  2. 2.208 − 179 =
  3. 3.524 − 489 =
  4. 4.316 − 285 =
  5. 5.93 − 64 =
  6. 6.312 − 279 =
  7. 7.306 − 292 =
  8. 8.1025 − 985 =
  9. 9.53 − 42 =
  10. 10.83 − 74 =
  11. 11.210 − 183 =
  12. 12.326 − 284 =
  13. 13.317 − 276 =
  14. 14.65 − 26 =
  15. 15.1019 − 990 =
  16. 16.513 − 484 =
  17. 17.78 − 34 =
  18. 18.104 − 78 =
  19. 19.203 − 182 =
  20. 20.1021 − 978 =
  21. 21.501 − 478 =
  22. 22.76 − 37 =
  23. 23.73 − 41 =
  24. 24.79 − 44 =
  25. 25.104 − 74 =
  26. 26.221 − 196 =
  27. 27.301 − 288 =
  28. 28.530 − 490 =
  29. 29.105 − 67 =
  30. 30.302 − 296 =
  31. 31.303 − 296 =
  32. 32.204 − 196 =
  33. 33.209 − 181 =
  34. 34.57 − 36 =
  35. 35.1014 − 991 =
  36. 36.54 − 44 =
  37. 37.1003 − 998 =
  38. 38.110 − 98 =
  39. 39.312 − 286 =
  40. 40.1017 − 998 =

Answer key

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

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