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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 899 · 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. 1.221 − 192 =
  2. 2.327 − 294 =
  3. 3.94 − 77 =
  4. 4.201 − 182 =
  5. 5.78 − 34 =
  6. 6.506 − 478 =
  7. 7.104 − 95 =
  8. 8.504 − 486 =
  9. 9.127 − 94 =
  10. 10.125 − 90 =
  11. 11.61 − 26 =
  12. 12.102 − 77 =
  13. 13.1001 − 997 =
  14. 14.126 − 86 =
  15. 15.515 − 480 =
  16. 16.89 − 68 =
  17. 17.1010 − 990 =
  18. 18.94 − 71 =
  19. 19.501 − 486 =
  20. 20.116 − 79 =
  21. 21.219 − 188 =
  22. 22.109 − 82 =
  23. 23.210 − 176 =
  24. 24.93 − 75 =
  25. 25.86 − 68 =
  26. 26.1023 − 994 =
  27. 27.222 − 185 =
  28. 28.514 − 488 =
  29. 29.1014 − 979 =
  30. 30.1025 − 994 =
  31. 31.1016 − 994 =
  32. 32.90 − 62 =
  33. 33.221 − 185 =
  34. 34.100 − 75 =
  35. 35.108 − 85 =
  36. 36.218 − 189 =
  37. 37.330 − 291 =
  38. 38.73 − 31 =
  39. 39.110 − 76 =
  40. 40.203 − 181 =

Answer key

  1. 29
  2. 33
  3. 17
  4. 19
  5. 44
  6. 28
  7. 9
  8. 18
  9. 33
  10. 35
  11. 35
  12. 25
  13. 4
  14. 40
  15. 35
  16. 21
  17. 20
  18. 23
  19. 15
  20. 37
  21. 31
  22. 27
  23. 34
  24. 18
  25. 18
  26. 29
  27. 37
  28. 26
  29. 35
  30. 31
  31. 22
  32. 28
  33. 36
  34. 25
  35. 23
  36. 29
  37. 39
  38. 42
  39. 34
  40. 22

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