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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 232 · 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 195 and 285 =
  2. 2.HCF of 80 and 224 =
  3. 3.HCF of 88 and 154 =
  4. 4.HCF of 24 and 128 =
  5. 5.HCF of 102 and 36 =
  6. 6.HCF of 48 and 120 =
  7. 7.HCF of 96 and 30 =
  8. 8.HCF of 10 and 45 =
  9. 9.HCF of 95 and 323 =
  10. 10.HCF of 180 and 99 =
  11. 11.HCF of 154 and 280 =
  12. 12.HCF of 68 and 153 =
  13. 13.HCF of 440 and 66 =
  14. 14.HCF of 30 and 22 =
  15. 15.HCF of 418 and 176 =
  16. 16.HCF of 57 and 18 =
  17. 17.HCF of 70 and 56 =
  18. 18.HCF of 84 and 49 =
  19. 19.HCF of 105 and 189 =
  20. 20.HCF of 260 and 240 =
  21. 21.HCF of 55 and 90 =
  22. 22.HCF of 18 and 45 =
  23. 23.HCF of 150 and 125 =
  24. 24.HCF of 184 and 207 =
  25. 25.HCF of 60 and 27 =
  26. 26.HCF of 175 and 50 =
  27. 27.HCF of 154 and 264 =
  28. 28.HCF of 130 and 117 =
  29. 29.HCF of 32 and 88 =
  30. 30.HCF of 169 and 117 =
  31. 31.HCF of 171 and 81 =
  32. 32.HCF of 40 and 64 =
  33. 33.HCF of 144 and 45 =
  34. 34.HCF of 160 and 24 =
  35. 35.HCF of 42 and 280 =
  36. 36.HCF of 308 and 198 =
  37. 37.HCF of 135 and 126 =
  38. 38.HCF of 32 and 10 =
  39. 39.HCF of 252 and 399 =
  40. 40.HCF of 77 and 84 =

Answer key

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

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