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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 522 · 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. 1.503 − 483 =
  2. 2.207 − 175 =
  3. 3.1028 − 982 =
  4. 4.508 − 492 =
  5. 5.304 − 285 =
  6. 6.304 − 296 =
  7. 7.503 − 479 =
  8. 8.507 − 475 =
  9. 9.94 − 66 =
  10. 10.119 − 89 =
  11. 11.83 − 66 =
  12. 12.116 − 76 =
  13. 13.519 − 497 =
  14. 14.329 − 282 =
  15. 15.326 − 282 =
  16. 16.126 − 91 =
  17. 17.86 − 59 =
  18. 18.65 − 42 =
  19. 19.226 − 198 =
  20. 20.130 − 92 =
  21. 21.523 − 489 =
  22. 22.1022 − 976 =
  23. 23.53 − 36 =
  24. 24.121 − 87 =
  25. 25.102 − 74 =
  26. 26.1025 − 985 =
  27. 27.1018 − 983 =
  28. 28.219 − 181 =
  29. 29.1006 − 998 =
  30. 30.114 − 78 =
  31. 31.201 − 190 =
  32. 32.112 − 79 =
  33. 33.301 − 278 =
  34. 34.82 − 67 =
  35. 35.122 − 75 =
  36. 36.307 − 281 =
  37. 37.80 − 41 =
  38. 38.326 − 291 =
  39. 39.320 − 296 =
  40. 40.228 − 187 =

Answer key

  1. 20
  2. 32
  3. 46
  4. 16
  5. 19
  6. 8
  7. 24
  8. 32
  9. 28
  10. 30
  11. 17
  12. 40
  13. 22
  14. 47
  15. 44
  16. 35
  17. 27
  18. 23
  19. 28
  20. 38
  21. 34
  22. 46
  23. 17
  24. 34
  25. 28
  26. 40
  27. 35
  28. 38
  29. 8
  30. 36
  31. 11
  32. 33
  33. 23
  34. 15
  35. 47
  36. 26
  37. 39
  38. 35
  39. 24
  40. 41

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