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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 689 · 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 322 and 345 =
  2. 2.HCF of 45 and 55 =
  3. 3.HCF of 312 and 144 =
  4. 4.HCF of 40 and 48 =
  5. 5.HCF of 108 and 30 =
  6. 6.HCF of 96 and 360 =
  7. 7.HCF of 60 and 165 =
  8. 8.HCF of 56 and 136 =
  9. 9.HCF of 126 and 77 =
  10. 10.HCF of 220 and 280 =
  11. 11.HCF of 120 and 32 =
  12. 12.HCF of 84 and 228 =
  13. 13.HCF of 44 and 165 =
  14. 14.HCF of 330 and 242 =
  15. 15.HCF of 65 and 117 =
  16. 16.HCF of 21 and 119 =
  17. 17.HCF of 30 and 16 =
  18. 18.HCF of 34 and 28 =
  19. 19.HCF of 51 and 36 =
  20. 20.HCF of 20 and 35 =
  21. 21.HCF of 76 and 24 =
  22. 22.HCF of 95 and 228 =
  23. 23.HCF of 60 and 35 =
  24. 24.HCF of 100 and 55 =
  25. 25.HCF of 6 and 8 =
  26. 26.HCF of 133 and 77 =
  27. 27.HCF of 60 and 165 =
  28. 28.HCF of 80 and 52 =
  29. 29.HCF of 60 and 285 =
  30. 30.HCF of 207 and 46 =
  31. 31.HCF of 33 and 39 =
  32. 32.HCF of 64 and 208 =
  33. 33.HCF of 91 and 21 =
  34. 34.HCF of 133 and 76 =
  35. 35.HCF of 225 and 125 =
  36. 36.HCF of 15 and 54 =
  37. 37.HCF of 117 and 126 =
  38. 38.HCF of 68 and 8 =
  39. 39.HCF of 80 and 30 =
  40. 40.HCF of 91 and 28 =

Answer key

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

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