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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 739 · 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 266 and 140 =
  2. 2.HCF of 266 and 70 =
  3. 3.HCF of 12 and 9 =
  4. 4.HCF of 80 and 56 =
  5. 5.HCF of 10 and 25 =
  6. 6.HCF of 60 and 340 =
  7. 7.HCF of 264 and 110 =
  8. 8.HCF of 54 and 102 =
  9. 9.HCF of 68 and 80 =
  10. 10.HCF of 42 and 66 =
  11. 11.HCF of 68 and 187 =
  12. 12.HCF of 440 and 154 =
  13. 13.HCF of 308 and 330 =
  14. 14.HCF of 144 and 126 =
  15. 15.HCF of 252 and 357 =
  16. 16.HCF of 28 and 210 =
  17. 17.HCF of 380 and 40 =
  18. 18.HCF of 221 and 195 =
  19. 19.HCF of 169 and 104 =
  20. 20.HCF of 98 and 35 =
  21. 21.HCF of 400 and 325 =
  22. 22.HCF of 63 and 357 =
  23. 23.HCF of 136 and 88 =
  24. 24.HCF of 209 and 228 =
  25. 25.HCF of 48 and 80 =
  26. 26.HCF of 153 and 36 =
  27. 27.HCF of 330 and 242 =
  28. 28.HCF of 221 and 26 =
  29. 29.HCF of 154 and 286 =
  30. 30.HCF of 90 and 75 =
  31. 31.HCF of 21 and 30 =
  32. 32.HCF of 60 and 100 =
  33. 33.HCF of 286 and 330 =
  34. 34.HCF of 168 and 357 =
  35. 35.HCF of 108 and 198 =
  36. 36.HCF of 304 and 192 =
  37. 37.HCF of 30 and 114 =
  38. 38.HCF of 26 and 22 =
  39. 39.HCF of 330 and 242 =
  40. 40.HCF of 399 and 189 =

Answer key

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

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