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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 697 · 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. 1.55 − 48 =
  2. 2.210 − 195 =
  3. 3.100 − 60 =
  4. 4.67 − 32 =
  5. 5.108 − 58 =
  6. 6.55 − 46 =
  7. 7.303 − 297 =
  8. 8.205 − 196 =
  9. 9.86 − 58 =
  10. 10.93 − 77 =
  11. 11.217 − 187 =
  12. 12.82 − 65 =
  13. 13.83 − 55 =
  14. 14.127 − 92 =
  15. 15.1014 − 998 =
  16. 16.1002 − 976 =
  17. 17.223 − 192 =
  18. 18.1019 − 983 =
  19. 19.203 − 180 =
  20. 20.508 − 495 =
  21. 21.122 − 91 =
  22. 22.129 − 78 =
  23. 23.225 − 184 =
  24. 24.216 − 175 =
  25. 25.107 − 89 =
  26. 26.126 − 92 =
  27. 27.1018 − 997 =
  28. 28.78 − 31 =
  29. 29.101 − 69 =
  30. 30.65 − 33 =
  31. 31.53 − 41 =
  32. 32.1027 − 993 =
  33. 33.122 − 87 =
  34. 34.105 − 93 =
  35. 35.108 − 76 =
  36. 36.80 − 30 =
  37. 37.57 − 40 =
  38. 38.1030 − 983 =
  39. 39.208 − 178 =
  40. 40.64 − 42 =

Answer key

  1. 7
  2. 15
  3. 40
  4. 35
  5. 50
  6. 9
  7. 6
  8. 9
  9. 28
  10. 16
  11. 30
  12. 17
  13. 28
  14. 35
  15. 16
  16. 26
  17. 31
  18. 36
  19. 23
  20. 13
  21. 31
  22. 51
  23. 41
  24. 41
  25. 18
  26. 34
  27. 21
  28. 47
  29. 32
  30. 32
  31. 12
  32. 34
  33. 35
  34. 12
  35. 32
  36. 50
  37. 17
  38. 47
  39. 30
  40. 22

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