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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 554 · 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. 1.321 − 290 =
  2. 2.81 − 75 =
  3. 3.320 − 294 =
  4. 4.218 − 177 =
  5. 5.106 − 58 =
  6. 6.91 − 63 =
  7. 7.209 − 180 =
  8. 8.127 − 86 =
  9. 9.206 − 191 =
  10. 10.522 − 492 =
  11. 11.63 − 43 =
  12. 12.81 − 74 =
  13. 13.57 − 35 =
  14. 14.71 − 25 =
  15. 15.74 − 45 =
  16. 16.1011 − 987 =
  17. 17.529 − 475 =
  18. 18.82 − 69 =
  19. 19.512 − 488 =
  20. 20.1003 − 986 =
  21. 21.1002 − 979 =
  22. 22.105 − 75 =
  23. 23.523 − 479 =
  24. 24.509 − 479 =
  25. 25.76 − 42 =
  26. 26.1016 − 985 =
  27. 27.65 − 43 =
  28. 28.84 − 55 =
  29. 29.86 − 77 =
  30. 30.216 − 178 =
  31. 31.305 − 293 =
  32. 32.208 − 183 =
  33. 33.100 − 72 =
  34. 34.504 − 485 =
  35. 35.57 − 34 =
  36. 36.115 − 98 =
  37. 37.514 − 498 =
  38. 38.1011 − 992 =
  39. 39.322 − 293 =
  40. 40.90 − 63 =

Answer key

  1. 31
  2. 6
  3. 26
  4. 41
  5. 48
  6. 28
  7. 29
  8. 41
  9. 15
  10. 30
  11. 20
  12. 7
  13. 22
  14. 46
  15. 29
  16. 24
  17. 54
  18. 13
  19. 24
  20. 17
  21. 23
  22. 30
  23. 44
  24. 30
  25. 34
  26. 31
  27. 22
  28. 29
  29. 9
  30. 38
  31. 12
  32. 25
  33. 28
  34. 19
  35. 23
  36. 17
  37. 16
  38. 19
  39. 29
  40. 27

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