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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 262 · 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. 1.227 − 183 =
  2. 2.69 − 46 =
  3. 3.1014 − 983 =
  4. 4.87 − 78 =
  5. 5.1002 − 988 =
  6. 6.311 − 298 =
  7. 7.67 − 45 =
  8. 8.77 − 39 =
  9. 9.122 − 90 =
  10. 10.70 − 40 =
  11. 11.103 − 97 =
  12. 12.99 − 73 =
  13. 13.1013 − 984 =
  14. 14.522 − 482 =
  15. 15.73 − 37 =
  16. 16.1025 − 978 =
  17. 17.97 − 59 =
  18. 18.505 − 475 =
  19. 19.513 − 483 =
  20. 20.71 − 44 =
  21. 21.106 − 80 =
  22. 22.104 − 77 =
  23. 23.110 − 57 =
  24. 24.315 − 295 =
  25. 25.223 − 191 =
  26. 26.106 − 75 =
  27. 27.328 − 278 =
  28. 28.74 − 35 =
  29. 29.54 − 28 =
  30. 30.304 − 297 =
  31. 31.58 − 44 =
  32. 32.91 − 73 =
  33. 33.1018 − 979 =
  34. 34.224 − 192 =
  35. 35.1029 − 996 =
  36. 36.1011 − 979 =
  37. 37.507 − 493 =
  38. 38.215 − 197 =
  39. 39.509 − 485 =
  40. 40.507 − 494 =

Answer key

  1. 44
  2. 23
  3. 31
  4. 9
  5. 14
  6. 13
  7. 22
  8. 38
  9. 32
  10. 30
  11. 6
  12. 26
  13. 29
  14. 40
  15. 36
  16. 47
  17. 38
  18. 30
  19. 30
  20. 27
  21. 26
  22. 27
  23. 53
  24. 20
  25. 32
  26. 31
  27. 50
  28. 39
  29. 26
  30. 7
  31. 14
  32. 18
  33. 39
  34. 32
  35. 33
  36. 32
  37. 14
  38. 18
  39. 24
  40. 13

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