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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 402 · 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. 1.211 − 175 =
  2. 2.89 − 64 =
  3. 3.504 − 476 =
  4. 4.102 − 75 =
  5. 5.1003 − 982 =
  6. 6.504 − 481 =
  7. 7.55 − 44 =
  8. 8.60 − 43 =
  9. 9.75 − 42 =
  10. 10.88 − 71 =
  11. 11.504 − 496 =
  12. 12.503 − 476 =
  13. 13.84 − 66 =
  14. 14.1026 − 978 =
  15. 15.69 − 42 =
  16. 16.61 − 41 =
  17. 17.330 − 297 =
  18. 18.222 − 195 =
  19. 19.320 − 283 =
  20. 20.1007 − 980 =
  21. 21.60 − 40 =
  22. 22.69 − 44 =
  23. 23.127 − 87 =
  24. 24.1022 − 996 =
  25. 25.212 − 195 =
  26. 26.508 − 480 =
  27. 27.115 − 90 =
  28. 28.82 − 57 =
  29. 29.313 − 275 =
  30. 30.115 − 89 =
  31. 31.527 − 493 =
  32. 32.1011 − 996 =
  33. 33.57 − 26 =
  34. 34.517 − 492 =
  35. 35.67 − 30 =
  36. 36.317 − 282 =
  37. 37.1018 − 979 =
  38. 38.223 − 182 =
  39. 39.113 − 78 =
  40. 40.319 − 292 =

Answer key

  1. 36
  2. 25
  3. 28
  4. 27
  5. 21
  6. 23
  7. 11
  8. 17
  9. 33
  10. 17
  11. 8
  12. 27
  13. 18
  14. 48
  15. 27
  16. 20
  17. 33
  18. 27
  19. 37
  20. 27
  21. 20
  22. 25
  23. 40
  24. 26
  25. 17
  26. 28
  27. 25
  28. 25
  29. 38
  30. 26
  31. 34
  32. 15
  33. 31
  34. 25
  35. 37
  36. 35
  37. 39
  38. 41
  39. 35
  40. 27

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