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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 991 · 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. 1.523 − 498 =
  2. 2.1022 − 994 =
  3. 3.103 − 94 =
  4. 4.77 − 39 =
  5. 5.63 − 29 =
  6. 6.109 − 65 =
  7. 7.121 − 87 =
  8. 8.221 − 196 =
  9. 9.81 − 65 =
  10. 10.506 − 477 =
  11. 11.207 − 196 =
  12. 12.84 − 74 =
  13. 13.321 − 278 =
  14. 14.1015 − 985 =
  15. 15.330 − 276 =
  16. 16.125 − 79 =
  17. 17.520 − 483 =
  18. 18.98 − 57 =
  19. 19.104 − 67 =
  20. 20.227 − 197 =
  21. 21.519 − 491 =
  22. 22.1011 − 989 =
  23. 23.1003 − 985 =
  24. 24.210 − 191 =
  25. 25.1022 − 991 =
  26. 26.1010 − 975 =
  27. 27.113 − 92 =
  28. 28.1012 − 998 =
  29. 29.309 − 295 =
  30. 30.303 − 293 =
  31. 31.1007 − 982 =
  32. 32.307 − 275 =
  33. 33.1005 − 980 =
  34. 34.523 − 488 =
  35. 35.112 − 89 =
  36. 36.227 − 191 =
  37. 37.119 − 81 =
  38. 38.108 − 88 =
  39. 39.326 − 276 =
  40. 40.309 − 285 =

Answer key

  1. 25
  2. 28
  3. 9
  4. 38
  5. 34
  6. 44
  7. 34
  8. 25
  9. 16
  10. 29
  11. 11
  12. 10
  13. 43
  14. 30
  15. 54
  16. 46
  17. 37
  18. 41
  19. 37
  20. 30
  21. 28
  22. 22
  23. 18
  24. 19
  25. 31
  26. 35
  27. 21
  28. 14
  29. 14
  30. 10
  31. 25
  32. 32
  33. 25
  34. 35
  35. 23
  36. 36
  37. 38
  38. 20
  39. 50
  40. 24

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