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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 422 · 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. 1.207 − 181 =
  2. 2.53 − 47 =
  3. 3.107 − 60 =
  4. 4.72 − 27 =
  5. 5.105 − 76 =
  6. 6.527 − 487 =
  7. 7.101 − 81 =
  8. 8.504 − 487 =
  9. 9.62 − 44 =
  10. 10.1009 − 976 =
  11. 11.319 − 286 =
  12. 12.504 − 480 =
  13. 13.503 − 493 =
  14. 14.93 − 77 =
  15. 15.100 − 70 =
  16. 16.115 − 90 =
  17. 17.104 − 62 =
  18. 18.207 − 193 =
  19. 19.91 − 64 =
  20. 20.511 − 490 =
  21. 21.83 − 57 =
  22. 22.78 − 40 =
  23. 23.1025 − 996 =
  24. 24.303 − 290 =
  25. 25.67 − 41 =
  26. 26.83 − 62 =
  27. 27.102 − 68 =
  28. 28.301 − 293 =
  29. 29.503 − 476 =
  30. 30.219 − 176 =
  31. 31.90 − 55 =
  32. 32.306 − 286 =
  33. 33.309 − 290 =
  34. 34.1004 − 995 =
  35. 35.59 − 40 =
  36. 36.123 − 81 =
  37. 37.529 − 494 =
  38. 38.203 − 190 =
  39. 39.1002 − 994 =
  40. 40.1024 − 978 =

Answer key

  1. 26
  2. 6
  3. 47
  4. 45
  5. 29
  6. 40
  7. 20
  8. 17
  9. 18
  10. 33
  11. 33
  12. 24
  13. 10
  14. 16
  15. 30
  16. 25
  17. 42
  18. 14
  19. 27
  20. 21
  21. 26
  22. 38
  23. 29
  24. 13
  25. 26
  26. 21
  27. 34
  28. 8
  29. 27
  30. 43
  31. 35
  32. 20
  33. 19
  34. 9
  35. 19
  36. 42
  37. 35
  38. 13
  39. 8
  40. 46

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