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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 973 · 40 sums
TalentJR

The trick (Sankalana-Vyavakalanabhyam): Take the smaller number away from the bigger one, as many times as it goes. Now use the smaller number and what is left. Repeat until nothing is left: the last number before 0 is the HCF.

NameDateTime takenScore ___ / 40
  1. 1.HCF of 275 and 300 =
  2. 2.HCF of 12 and 66 =
  3. 3.HCF of 36 and 21 =
  4. 4.HCF of 136 and 153 =
  5. 5.HCF of 270 and 255 =
  6. 6.HCF of 168 and 144 =
  7. 7.HCF of 133 and 76 =
  8. 8.HCF of 90 and 130 =
  9. 9.HCF of 180 and 340 =
  10. 10.HCF of 39 and 6 =
  11. 11.HCF of 75 and 270 =
  12. 12.HCF of 325 and 200 =
  13. 13.HCF of 95 and 247 =
  14. 14.HCF of 102 and 66 =
  15. 15.HCF of 76 and 48 =
  16. 16.HCF of 136 and 153 =
  17. 17.HCF of 160 and 190 =
  18. 18.HCF of 324 and 234 =
  19. 19.HCF of 20 and 34 =
  20. 20.HCF of 99 and 81 =
  21. 21.HCF of 275 and 125 =
  22. 22.HCF of 20 and 14 =
  23. 23.HCF of 117 and 81 =
  24. 24.HCF of 33 and 18 =
  25. 25.HCF of 247 and 114 =
  26. 26.HCF of 176 and 304 =
  27. 27.HCF of 160 and 340 =
  28. 28.HCF of 266 and 285 =
  29. 29.HCF of 52 and 60 =
  30. 30.HCF of 140 and 30 =
  31. 31.HCF of 120 and 48 =
  32. 32.HCF of 420 and 189 =
  33. 33.HCF of 76 and 8 =
  34. 34.HCF of 39 and 15 =
  35. 35.HCF of 152 and 32 =
  36. 36.HCF of 54 and 15 =
  37. 37.HCF of 133 and 42 =
  38. 38.HCF of 10 and 85 =
  39. 39.HCF of 168 and 182 =
  40. 40.HCF of 38 and 22 =

Answer key

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

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