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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 661 · 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. 1.53 − 47 =
  2. 2.106 − 83 =
  3. 3.110 − 73 =
  4. 4.1001 − 998 =
  5. 5.116 − 98 =
  6. 6.309 − 285 =
  7. 7.82 − 63 =
  8. 8.304 − 297 =
  9. 9.1009 − 994 =
  10. 10.1003 − 996 =
  11. 11.96 − 64 =
  12. 12.105 − 97 =
  13. 13.203 − 194 =
  14. 14.1008 − 985 =
  15. 15.105 − 57 =
  16. 16.52 − 32 =
  17. 17.319 − 295 =
  18. 18.1009 − 995 =
  19. 19.224 − 187 =
  20. 20.104 − 65 =
  21. 21.118 − 97 =
  22. 22.85 − 70 =
  23. 23.204 − 181 =
  24. 24.123 − 77 =
  25. 25.64 − 44 =
  26. 26.129 − 77 =
  27. 27.1024 − 998 =
  28. 28.306 − 294 =
  29. 29.321 − 298 =
  30. 30.100 − 64 =
  31. 31.102 − 55 =
  32. 32.202 − 196 =
  33. 33.119 − 77 =
  34. 34.55 − 26 =
  35. 35.1008 − 995 =
  36. 36.56 − 27 =
  37. 37.507 − 485 =
  38. 38.85 − 74 =
  39. 39.216 − 180 =
  40. 40.506 − 498 =

Answer key

  1. 6
  2. 23
  3. 37
  4. 3
  5. 18
  6. 24
  7. 19
  8. 7
  9. 15
  10. 7
  11. 32
  12. 8
  13. 9
  14. 23
  15. 48
  16. 20
  17. 24
  18. 14
  19. 37
  20. 39
  21. 21
  22. 15
  23. 23
  24. 46
  25. 20
  26. 52
  27. 26
  28. 12
  29. 23
  30. 36
  31. 47
  32. 6
  33. 42
  34. 29
  35. 13
  36. 29
  37. 22
  38. 11
  39. 36
  40. 8

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