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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 757 · 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. 1.116 − 85 =
  2. 2.1004 − 976 =
  3. 3.323 − 294 =
  4. 4.329 − 280 =
  5. 5.87 − 63 =
  6. 6.57 − 42 =
  7. 7.327 − 296 =
  8. 8.130 − 91 =
  9. 9.129 − 91 =
  10. 10.1026 − 997 =
  11. 11.54 − 27 =
  12. 12.56 − 47 =
  13. 13.120 − 83 =
  14. 14.101 − 94 =
  15. 15.516 − 482 =
  16. 16.304 − 295 =
  17. 17.56 − 42 =
  18. 18.52 − 47 =
  19. 19.77 − 39 =
  20. 20.83 − 59 =
  21. 21.94 − 72 =
  22. 22.104 − 55 =
  23. 23.517 − 496 =
  24. 24.103 − 75 =
  25. 25.203 − 194 =
  26. 26.511 − 477 =
  27. 27.518 − 481 =
  28. 28.114 − 86 =
  29. 29.85 − 56 =
  30. 30.219 − 188 =
  31. 31.1017 − 991 =
  32. 32.66 − 27 =
  33. 33.1015 − 986 =
  34. 34.220 − 191 =
  35. 35.526 − 476 =
  36. 36.90 − 61 =
  37. 37.108 − 91 =
  38. 38.1029 − 978 =
  39. 39.93 − 77 =
  40. 40.122 − 76 =

Answer key

  1. 31
  2. 28
  3. 29
  4. 49
  5. 24
  6. 15
  7. 31
  8. 39
  9. 38
  10. 29
  11. 27
  12. 9
  13. 37
  14. 7
  15. 34
  16. 9
  17. 14
  18. 5
  19. 38
  20. 24
  21. 22
  22. 49
  23. 21
  24. 28
  25. 9
  26. 34
  27. 37
  28. 28
  29. 29
  30. 31
  31. 26
  32. 39
  33. 29
  34. 29
  35. 50
  36. 29
  37. 17
  38. 51
  39. 16
  40. 46

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