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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 904 · 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. 1.109 − 89 =
  2. 2.513 − 496 =
  3. 3.205 − 194 =
  4. 4.525 − 491 =
  5. 5.1027 − 978 =
  6. 6.208 − 190 =
  7. 7.205 − 188 =
  8. 8.313 − 291 =
  9. 9.530 − 486 =
  10. 10.1020 − 975 =
  11. 11.214 − 194 =
  12. 12.62 − 27 =
  13. 13.202 − 194 =
  14. 14.104 − 72 =
  15. 15.203 − 194 =
  16. 16.98 − 76 =
  17. 17.1013 − 994 =
  18. 18.309 − 278 =
  19. 19.504 − 493 =
  20. 20.202 − 197 =
  21. 21.526 − 486 =
  22. 22.103 − 73 =
  23. 23.58 − 42 =
  24. 24.89 − 60 =
  25. 25.86 − 59 =
  26. 26.1020 − 986 =
  27. 27.52 − 46 =
  28. 28.1005 − 989 =
  29. 29.520 − 496 =
  30. 30.119 − 95 =
  31. 31.88 − 75 =
  32. 32.1008 − 996 =
  33. 33.216 − 177 =
  34. 34.509 − 486 =
  35. 35.312 − 295 =
  36. 36.214 − 180 =
  37. 37.203 − 198 =
  38. 38.1002 − 986 =
  39. 39.1026 − 996 =
  40. 40.323 − 292 =

Answer key

  1. 20
  2. 17
  3. 11
  4. 34
  5. 49
  6. 18
  7. 17
  8. 22
  9. 44
  10. 45
  11. 20
  12. 35
  13. 8
  14. 32
  15. 9
  16. 22
  17. 19
  18. 31
  19. 11
  20. 5
  21. 40
  22. 30
  23. 16
  24. 29
  25. 27
  26. 34
  27. 6
  28. 16
  29. 24
  30. 24
  31. 13
  32. 12
  33. 39
  34. 23
  35. 17
  36. 34
  37. 5
  38. 16
  39. 30
  40. 31

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