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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 441 · 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 56 and 52 =
  2. 2.HCF of 286 and 440 =
  3. 3.HCF of 143 and 55 =
  4. 4.HCF of 247 and 38 =
  5. 5.HCF of 125 and 475 =
  6. 6.HCF of 187 and 136 =
  7. 7.HCF of 114 and 66 =
  8. 8.HCF of 408 and 456 =
  9. 9.HCF of 42 and 15 =
  10. 10.HCF of 126 and 105 =
  11. 11.HCF of 384 and 120 =
  12. 12.HCF of 54 and 48 =
  13. 13.HCF of 300 and 275 =
  14. 14.HCF of 104 and 24 =
  15. 15.HCF of 175 and 250 =
  16. 16.HCF of 96 and 104 =
  17. 17.HCF of 40 and 300 =
  18. 18.HCF of 112 and 80 =
  19. 19.HCF of 130 and 70 =
  20. 20.HCF of 120 and 152 =
  21. 21.HCF of 26 and 12 =
  22. 22.HCF of 16 and 104 =
  23. 23.HCF of 48 and 216 =
  24. 24.HCF of 114 and 323 =
  25. 25.HCF of 195 and 240 =
  26. 26.HCF of 126 and 140 =
  27. 27.HCF of 72 and 126 =
  28. 28.HCF of 187 and 110 =
  29. 29.HCF of 21 and 57 =
  30. 30.HCF of 72 and 126 =
  31. 31.HCF of 78 and 60 =
  32. 32.HCF of 63 and 133 =
  33. 33.HCF of 27 and 144 =
  34. 34.HCF of 30 and 24 =
  35. 35.HCF of 125 and 300 =
  36. 36.HCF of 165 and 44 =
  37. 37.HCF of 192 and 36 =
  38. 38.HCF of 12 and 27 =
  39. 39.HCF of 44 and 52 =
  40. 40.HCF of 270 and 234 =

Answer key

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

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