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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 174 · 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. 1.75 − 37 =
  2. 2.60 − 35 =
  3. 3.519 − 482 =
  4. 4.204 − 195 =
  5. 5.213 − 195 =
  6. 6.86 − 63 =
  7. 7.63 − 37 =
  8. 8.1028 − 987 =
  9. 9.1006 − 975 =
  10. 10.504 − 490 =
  11. 11.77 − 39 =
  12. 12.205 − 194 =
  13. 13.202 − 189 =
  14. 14.55 − 42 =
  15. 15.94 − 73 =
  16. 16.117 − 79 =
  17. 17.515 − 498 =
  18. 18.95 − 58 =
  19. 19.309 − 282 =
  20. 20.82 − 59 =
  21. 21.106 − 60 =
  22. 22.51 − 40 =
  23. 23.81 − 57 =
  24. 24.226 − 188 =
  25. 25.120 − 91 =
  26. 26.74 − 40 =
  27. 27.61 − 36 =
  28. 28.97 − 71 =
  29. 29.63 − 40 =
  30. 30.511 − 485 =
  31. 31.67 − 25 =
  32. 32.206 − 194 =
  33. 33.66 − 41 =
  34. 34.220 − 181 =
  35. 35.122 − 85 =
  36. 36.101 − 92 =
  37. 37.221 − 176 =
  38. 38.88 − 73 =
  39. 39.326 − 293 =
  40. 40.66 − 31 =

Answer key

  1. 38
  2. 25
  3. 37
  4. 9
  5. 18
  6. 23
  7. 26
  8. 41
  9. 31
  10. 14
  11. 38
  12. 11
  13. 13
  14. 13
  15. 21
  16. 38
  17. 17
  18. 37
  19. 27
  20. 23
  21. 46
  22. 11
  23. 24
  24. 38
  25. 29
  26. 34
  27. 25
  28. 26
  29. 23
  30. 26
  31. 42
  32. 12
  33. 25
  34. 39
  35. 37
  36. 9
  37. 45
  38. 15
  39. 33
  40. 35

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