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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 186 · 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. 1.109 − 62 =
  2. 2.309 − 279 =
  3. 3.100 − 66 =
  4. 4.1008 − 977 =
  5. 5.508 − 495 =
  6. 6.330 − 297 =
  7. 7.69 − 46 =
  8. 8.305 − 286 =
  9. 9.107 − 62 =
  10. 10.57 − 28 =
  11. 11.530 − 496 =
  12. 12.503 − 495 =
  13. 13.217 − 183 =
  14. 14.316 − 292 =
  15. 15.119 − 78 =
  16. 16.509 − 485 =
  17. 17.313 − 284 =
  18. 18.212 − 182 =
  19. 19.1003 − 990 =
  20. 20.1002 − 983 =
  21. 21.59 − 31 =
  22. 22.95 − 71 =
  23. 23.310 − 276 =
  24. 24.520 − 485 =
  25. 25.513 − 494 =
  26. 26.321 − 292 =
  27. 27.512 − 490 =
  28. 28.225 − 181 =
  29. 29.227 − 188 =
  30. 30.130 − 97 =
  31. 31.83 − 69 =
  32. 32.103 − 68 =
  33. 33.56 − 41 =
  34. 34.204 − 194 =
  35. 35.59 − 32 =
  36. 36.529 − 489 =
  37. 37.501 − 486 =
  38. 38.88 − 72 =
  39. 39.90 − 60 =
  40. 40.87 − 63 =

Answer key

  1. 47
  2. 30
  3. 34
  4. 31
  5. 13
  6. 33
  7. 23
  8. 19
  9. 45
  10. 29
  11. 34
  12. 8
  13. 34
  14. 24
  15. 41
  16. 24
  17. 29
  18. 30
  19. 13
  20. 19
  21. 28
  22. 24
  23. 34
  24. 35
  25. 19
  26. 29
  27. 22
  28. 44
  29. 39
  30. 33
  31. 14
  32. 35
  33. 15
  34. 10
  35. 27
  36. 40
  37. 15
  38. 16
  39. 30
  40. 24

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