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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 411 · 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. 1.527 − 496 =
  2. 2.105 − 71 =
  3. 3.329 − 278 =
  4. 4.79 − 30 =
  5. 5.75 − 46 =
  6. 6.528 − 495 =
  7. 7.89 − 78 =
  8. 8.52 − 33 =
  9. 9.62 − 46 =
  10. 10.213 − 186 =
  11. 11.510 − 481 =
  12. 12.520 − 481 =
  13. 13.507 − 498 =
  14. 14.330 − 295 =
  15. 15.64 − 45 =
  16. 16.59 − 48 =
  17. 17.65 − 33 =
  18. 18.104 − 67 =
  19. 19.122 − 92 =
  20. 20.95 − 62 =
  21. 21.325 − 296 =
  22. 22.301 − 277 =
  23. 23.512 − 481 =
  24. 24.124 − 96 =
  25. 25.320 − 291 =
  26. 26.113 − 82 =
  27. 27.212 − 191 =
  28. 28.53 − 42 =
  29. 29.504 − 493 =
  30. 30.129 − 76 =
  31. 31.81 − 70 =
  32. 32.512 − 489 =
  33. 33.105 − 62 =
  34. 34.508 − 482 =
  35. 35.87 − 59 =
  36. 36.123 − 79 =
  37. 37.109 − 64 =
  38. 38.220 − 176 =
  39. 39.101 − 75 =
  40. 40.210 − 179 =

Answer key

  1. 31
  2. 34
  3. 51
  4. 49
  5. 29
  6. 33
  7. 11
  8. 19
  9. 16
  10. 27
  11. 29
  12. 39
  13. 9
  14. 35
  15. 19
  16. 11
  17. 32
  18. 37
  19. 30
  20. 33
  21. 29
  22. 24
  23. 31
  24. 28
  25. 29
  26. 31
  27. 21
  28. 11
  29. 11
  30. 53
  31. 11
  32. 23
  33. 43
  34. 26
  35. 28
  36. 44
  37. 45
  38. 44
  39. 26
  40. 31

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