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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 922 · 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 130 and 60 =
  2. 2.HCF of 224 and 80 =
  3. 3.HCF of 72 and 114 =
  4. 4.HCF of 34 and 187 =
  5. 5.HCF of 187 and 102 =
  6. 6.HCF of 135 and 30 =
  7. 7.HCF of 48 and 42 =
  8. 8.HCF of 80 and 112 =
  9. 9.HCF of 289 and 340 =
  10. 10.HCF of 57 and 190 =
  11. 11.HCF of 105 and 399 =
  12. 12.HCF of 8 and 34 =
  13. 13.HCF of 56 and 104 =
  14. 14.HCF of 38 and 12 =
  15. 15.HCF of 320 and 340 =
  16. 16.HCF of 152 and 136 =
  17. 17.HCF of 39 and 48 =
  18. 18.HCF of 57 and 30 =
  19. 19.HCF of 104 and 152 =
  20. 20.HCF of 238 and 126 =
  21. 21.HCF of 10 and 4 =
  22. 22.HCF of 475 and 375 =
  23. 23.HCF of 190 and 160 =
  24. 24.HCF of 50 and 15 =
  25. 25.HCF of 57 and 42 =
  26. 26.HCF of 195 and 91 =
  27. 27.HCF of 264 and 144 =
  28. 28.HCF of 32 and 36 =
  29. 29.HCF of 28 and 26 =
  30. 30.HCF of 90 and 12 =
  31. 31.HCF of 391 and 138 =
  32. 32.HCF of 98 and 35 =
  33. 33.HCF of 175 and 500 =
  34. 34.HCF of 437 and 276 =
  35. 35.HCF of 78 and 36 =
  36. 36.HCF of 24 and 180 =
  37. 37.HCF of 6 and 39 =
  38. 38.HCF of 9 and 33 =
  39. 39.HCF of 153 and 323 =
  40. 40.HCF of 98 and 63 =

Answer key

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

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