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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 687 · 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. 1.519 − 475 =
  2. 2.1004 − 991 =
  3. 3.204 − 192 =
  4. 4.207 − 192 =
  5. 5.51 − 44 =
  6. 6.93 − 61 =
  7. 7.86 − 64 =
  8. 8.207 − 195 =
  9. 9.216 − 190 =
  10. 10.110 − 78 =
  11. 11.67 − 31 =
  12. 12.102 − 80 =
  13. 13.513 − 479 =
  14. 14.65 − 48 =
  15. 15.124 − 94 =
  16. 16.111 − 88 =
  17. 17.87 − 77 =
  18. 18.59 − 32 =
  19. 19.1008 − 976 =
  20. 20.1021 − 988 =
  21. 21.121 − 95 =
  22. 22.56 − 44 =
  23. 23.1024 − 998 =
  24. 24.61 − 43 =
  25. 25.64 − 39 =
  26. 26.94 − 75 =
  27. 27.100 − 68 =
  28. 28.71 − 38 =
  29. 29.322 − 293 =
  30. 30.65 − 28 =
  31. 31.1005 − 996 =
  32. 32.82 − 74 =
  33. 33.514 − 493 =
  34. 34.203 − 186 =
  35. 35.111 − 94 =
  36. 36.227 − 189 =
  37. 37.83 − 68 =
  38. 38.1020 − 998 =
  39. 39.102 − 61 =
  40. 40.208 − 182 =

Answer key

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

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