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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 59 · 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. 1.304 − 288 =
  2. 2.217 − 194 =
  3. 3.101 − 68 =
  4. 4.211 − 178 =
  5. 5.85 − 78 =
  6. 6.514 − 479 =
  7. 7.302 − 280 =
  8. 8.120 − 85 =
  9. 9.61 − 39 =
  10. 10.119 − 79 =
  11. 11.64 − 34 =
  12. 12.110 − 64 =
  13. 13.121 − 82 =
  14. 14.52 − 41 =
  15. 15.86 − 71 =
  16. 16.53 − 27 =
  17. 17.506 − 495 =
  18. 18.315 − 287 =
  19. 19.68 − 41 =
  20. 20.55 − 36 =
  21. 21.514 − 482 =
  22. 22.317 − 286 =
  23. 23.81 − 71 =
  24. 24.205 − 194 =
  25. 25.217 − 184 =
  26. 26.202 − 195 =
  27. 27.110 − 76 =
  28. 28.206 − 187 =
  29. 29.1007 − 985 =
  30. 30.302 − 292 =
  31. 31.326 − 291 =
  32. 32.106 − 77 =
  33. 33.123 − 92 =
  34. 34.112 − 76 =
  35. 35.228 − 182 =
  36. 36.509 − 479 =
  37. 37.504 − 497 =
  38. 38.222 − 193 =
  39. 39.93 − 76 =
  40. 40.95 − 61 =

Answer key

  1. 16
  2. 23
  3. 33
  4. 33
  5. 7
  6. 35
  7. 22
  8. 35
  9. 22
  10. 40
  11. 30
  12. 46
  13. 39
  14. 11
  15. 15
  16. 26
  17. 11
  18. 28
  19. 27
  20. 19
  21. 32
  22. 31
  23. 10
  24. 11
  25. 33
  26. 7
  27. 34
  28. 19
  29. 22
  30. 10
  31. 35
  32. 29
  33. 31
  34. 36
  35. 46
  36. 30
  37. 7
  38. 29
  39. 17
  40. 34

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