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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 134 · 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 − 83 =
  2. 2.1017 − 988 =
  3. 3.203 − 197 =
  4. 4.82 − 73 =
  5. 5.505 − 484 =
  6. 6.524 − 490 =
  7. 7.98 − 58 =
  8. 8.323 − 298 =
  9. 9.218 − 182 =
  10. 10.326 − 295 =
  11. 11.125 − 94 =
  12. 12.76 − 47 =
  13. 13.103 − 79 =
  14. 14.205 − 198 =
  15. 15.101 − 94 =
  16. 16.122 − 75 =
  17. 17.220 − 188 =
  18. 18.329 − 275 =
  19. 19.307 − 276 =
  20. 20.214 − 182 =
  21. 21.230 − 180 =
  22. 22.1015 − 982 =
  23. 23.1002 − 988 =
  24. 24.102 − 81 =
  25. 25.72 − 35 =
  26. 26.304 − 289 =
  27. 27.320 − 277 =
  28. 28.104 − 95 =
  29. 29.100 − 58 =
  30. 30.123 − 77 =
  31. 31.108 − 78 =
  32. 32.52 − 40 =
  33. 33.311 − 285 =
  34. 34.101 − 75 =
  35. 35.124 − 98 =
  36. 36.524 − 482 =
  37. 37.511 − 493 =
  38. 38.95 − 69 =
  39. 39.207 − 186 =
  40. 40.325 − 280 =

Answer key

  1. 47
  2. 29
  3. 6
  4. 9
  5. 21
  6. 34
  7. 40
  8. 25
  9. 36
  10. 31
  11. 31
  12. 29
  13. 24
  14. 7
  15. 7
  16. 47
  17. 32
  18. 54
  19. 31
  20. 32
  21. 50
  22. 33
  23. 14
  24. 21
  25. 37
  26. 15
  27. 43
  28. 9
  29. 42
  30. 46
  31. 30
  32. 12
  33. 26
  34. 26
  35. 26
  36. 42
  37. 18
  38. 26
  39. 21
  40. 45

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