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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 476 · 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 180 =
  2. 2.HCF of 374 and 110 =
  3. 3.HCF of 60 and 16 =
  4. 4.HCF of 50 and 40 =
  5. 5.HCF of 114 and 120 =
  6. 6.HCF of 88 and 136 =
  7. 7.HCF of 45 and 195 =
  8. 8.HCF of 128 and 40 =
  9. 9.HCF of 40 and 76 =
  10. 10.HCF of 168 and 98 =
  11. 11.HCF of 12 and 18 =
  12. 12.HCF of 168 and 312 =
  13. 13.HCF of 40 and 32 =
  14. 14.HCF of 195 and 105 =
  15. 15.HCF of 90 and 200 =
  16. 16.HCF of 182 and 126 =
  17. 17.HCF of 121 and 176 =
  18. 18.HCF of 437 and 69 =
  19. 19.HCF of 252 and 154 =
  20. 20.HCF of 84 and 315 =
  21. 21.HCF of 108 and 306 =
  22. 22.HCF of 105 and 98 =
  23. 23.HCF of 34 and 10 =
  24. 24.HCF of 99 and 27 =
  25. 25.HCF of 242 and 308 =
  26. 26.HCF of 38 and 32 =
  27. 27.HCF of 285 and 38 =
  28. 28.HCF of 18 and 96 =
  29. 29.HCF of 28 and 49 =
  30. 30.HCF of 35 and 20 =
  31. 31.HCF of 85 and 65 =
  32. 32.HCF of 168 and 60 =
  33. 33.HCF of 240 and 105 =
  34. 34.HCF of 312 and 408 =
  35. 35.HCF of 190 and 323 =
  36. 36.HCF of 24 and 88 =
  37. 37.HCF of 208 and 169 =
  38. 38.HCF of 65 and 10 =
  39. 39.HCF of 456 and 48 =
  40. 40.HCF of 168 and 154 =

Answer key

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

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