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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 201 · 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 380 and 60 =
  2. 2.HCF of 91 and 84 =
  3. 3.HCF of 414 and 115 =
  4. 4.HCF of 99 and 90 =
  5. 5.HCF of 50 and 190 =
  6. 6.HCF of 154 and 238 =
  7. 7.HCF of 224 and 144 =
  8. 8.HCF of 156 and 120 =
  9. 9.HCF of 64 and 272 =
  10. 10.HCF of 4 and 18 =
  11. 11.HCF of 200 and 190 =
  12. 12.HCF of 60 and 28 =
  13. 13.HCF of 88 and 33 =
  14. 14.HCF of 119 and 28 =
  15. 15.HCF of 176 and 144 =
  16. 16.HCF of 77 and 140 =
  17. 17.HCF of 154 and 330 =
  18. 18.HCF of 77 and 143 =
  19. 19.HCF of 156 and 221 =
  20. 20.HCF of 38 and 24 =
  21. 21.HCF of 54 and 60 =
  22. 22.HCF of 38 and 14 =
  23. 23.HCF of 380 and 240 =
  24. 24.HCF of 42 and 98 =
  25. 25.HCF of 32 and 68 =
  26. 26.HCF of 260 and 117 =
  27. 27.HCF of 48 and 30 =
  28. 28.HCF of 170 and 187 =
  29. 29.HCF of 28 and 8 =
  30. 30.HCF of 300 and 380 =
  31. 31.HCF of 154 and 286 =
  32. 32.HCF of 143 and 182 =
  33. 33.HCF of 55 and 30 =
  34. 34.HCF of 28 and 26 =
  35. 35.HCF of 80 and 48 =
  36. 36.HCF of 28 and 119 =
  37. 37.HCF of 78 and 60 =
  38. 38.HCF of 72 and 168 =
  39. 39.HCF of 132 and 154 =
  40. 40.HCF of 144 and 153 =

Answer key

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

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