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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 952 · 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. 1.75 − 35 =
  2. 2.117 − 98 =
  3. 3.502 − 483 =
  4. 4.209 − 189 =
  5. 5.1014 − 982 =
  6. 6.311 − 297 =
  7. 7.124 − 91 =
  8. 8.301 − 284 =
  9. 9.120 − 80 =
  10. 10.78 − 30 =
  11. 11.102 − 68 =
  12. 12.201 − 194 =
  13. 13.130 − 81 =
  14. 14.517 − 492 =
  15. 15.230 − 181 =
  16. 16.318 − 294 =
  17. 17.69 − 30 =
  18. 18.57 − 42 =
  19. 19.312 − 281 =
  20. 20.315 − 285 =
  21. 21.211 − 195 =
  22. 22.128 − 95 =
  23. 23.109 − 73 =
  24. 24.66 − 34 =
  25. 25.508 − 477 =
  26. 26.503 − 496 =
  27. 27.323 − 279 =
  28. 28.1005 − 977 =
  29. 29.103 − 78 =
  30. 30.81 − 58 =
  31. 31.120 − 91 =
  32. 32.1024 − 998 =
  33. 33.55 − 34 =
  34. 34.82 − 67 =
  35. 35.84 − 55 =
  36. 36.207 − 176 =
  37. 37.310 − 281 =
  38. 38.211 − 186 =
  39. 39.85 − 69 =
  40. 40.501 − 478 =

Answer key

  1. 40
  2. 19
  3. 19
  4. 20
  5. 32
  6. 14
  7. 33
  8. 17
  9. 40
  10. 48
  11. 34
  12. 7
  13. 49
  14. 25
  15. 49
  16. 24
  17. 39
  18. 15
  19. 31
  20. 30
  21. 16
  22. 33
  23. 36
  24. 32
  25. 31
  26. 7
  27. 44
  28. 28
  29. 25
  30. 23
  31. 29
  32. 26
  33. 21
  34. 15
  35. 29
  36. 31
  37. 29
  38. 25
  39. 16
  40. 23

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