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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 190 · 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. 1.116 − 90 =
  2. 2.123 − 75 =
  3. 3.517 − 498 =
  4. 4.525 − 486 =
  5. 5.81 − 77 =
  6. 6.1028 − 975 =
  7. 7.115 − 97 =
  8. 8.107 − 68 =
  9. 9.78 − 32 =
  10. 10.62 − 30 =
  11. 11.218 − 182 =
  12. 12.505 − 488 =
  13. 13.105 − 92 =
  14. 14.320 − 295 =
  15. 15.1024 − 983 =
  16. 16.530 − 478 =
  17. 17.61 − 45 =
  18. 18.522 − 498 =
  19. 19.201 − 197 =
  20. 20.505 − 483 =
  21. 21.505 − 479 =
  22. 22.229 − 182 =
  23. 23.73 − 40 =
  24. 24.527 − 481 =
  25. 25.1025 − 982 =
  26. 26.201 − 182 =
  27. 27.53 − 43 =
  28. 28.1024 − 975 =
  29. 29.225 − 196 =
  30. 30.61 − 36 =
  31. 31.203 − 180 =
  32. 32.120 − 95 =
  33. 33.99 − 61 =
  34. 34.1005 − 976 =
  35. 35.211 − 185 =
  36. 36.1016 − 990 =
  37. 37.329 − 295 =
  38. 38.68 − 35 =
  39. 39.103 − 64 =
  40. 40.99 − 65 =

Answer key

  1. 26
  2. 48
  3. 19
  4. 39
  5. 4
  6. 53
  7. 18
  8. 39
  9. 46
  10. 32
  11. 36
  12. 17
  13. 13
  14. 25
  15. 41
  16. 52
  17. 16
  18. 24
  19. 4
  20. 22
  21. 26
  22. 47
  23. 33
  24. 46
  25. 43
  26. 19
  27. 10
  28. 49
  29. 29
  30. 25
  31. 23
  32. 25
  33. 38
  34. 29
  35. 26
  36. 26
  37. 34
  38. 33
  39. 39
  40. 34

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