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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 173 · 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. 1.56 − 31 =
  2. 2.103 − 70 =
  3. 3.507 − 485 =
  4. 4.201 − 198 =
  5. 5.505 − 491 =
  6. 6.53 − 32 =
  7. 7.1004 − 987 =
  8. 8.117 − 98 =
  9. 9.228 − 190 =
  10. 10.77 − 32 =
  11. 11.107 − 72 =
  12. 12.301 − 292 =
  13. 13.521 − 481 =
  14. 14.1019 − 981 =
  15. 15.106 − 87 =
  16. 16.519 − 496 =
  17. 17.511 − 490 =
  18. 18.80 − 39 =
  19. 19.319 − 296 =
  20. 20.105 − 58 =
  21. 21.1018 − 991 =
  22. 22.328 − 291 =
  23. 23.77 − 30 =
  24. 24.59 − 43 =
  25. 25.316 − 295 =
  26. 26.88 − 70 =
  27. 27.528 − 484 =
  28. 28.303 − 291 =
  29. 29.62 − 47 =
  30. 30.78 − 27 =
  31. 31.1008 − 998 =
  32. 32.88 − 73 =
  33. 33.1019 − 988 =
  34. 34.205 − 189 =
  35. 35.86 − 55 =
  36. 36.73 − 38 =
  37. 37.51 − 36 =
  38. 38.1008 − 979 =
  39. 39.81 − 78 =
  40. 40.1021 − 978 =

Answer key

  1. 25
  2. 33
  3. 22
  4. 3
  5. 14
  6. 21
  7. 17
  8. 19
  9. 38
  10. 45
  11. 35
  12. 9
  13. 40
  14. 38
  15. 19
  16. 23
  17. 21
  18. 41
  19. 23
  20. 47
  21. 27
  22. 37
  23. 47
  24. 16
  25. 21
  26. 18
  27. 44
  28. 12
  29. 15
  30. 51
  31. 10
  32. 15
  33. 31
  34. 16
  35. 31
  36. 35
  37. 15
  38. 29
  39. 3
  40. 43

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