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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 119 · 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 35 and 25 =
  2. 2.HCF of 50 and 110 =
  3. 3.HCF of 98 and 126 =
  4. 4.HCF of 33 and 48 =
  5. 5.HCF of 66 and 48 =
  6. 6.HCF of 140 and 320 =
  7. 7.HCF of 306 and 252 =
  8. 8.HCF of 306 and 72 =
  9. 9.HCF of 418 and 154 =
  10. 10.HCF of 250 and 425 =
  11. 11.HCF of 320 and 60 =
  12. 12.HCF of 154 and 55 =
  13. 13.HCF of 38 and 20 =
  14. 14.HCF of 33 and 18 =
  15. 15.HCF of 135 and 120 =
  16. 16.HCF of 176 and 32 =
  17. 17.HCF of 42 and 96 =
  18. 18.HCF of 15 and 6 =
  19. 19.HCF of 204 and 24 =
  20. 20.HCF of 121 and 33 =
  21. 21.HCF of 260 and 80 =
  22. 22.HCF of 209 and 88 =
  23. 23.HCF of 52 and 76 =
  24. 24.HCF of 85 and 34 =
  25. 25.HCF of 15 and 85 =
  26. 26.HCF of 72 and 20 =
  27. 27.HCF of 187 and 22 =
  28. 28.HCF of 133 and 119 =
  29. 29.HCF of 323 and 187 =
  30. 30.HCF of 72 and 204 =
  31. 31.HCF of 48 and 88 =
  32. 32.HCF of 18 and 120 =
  33. 33.HCF of 380 and 220 =
  34. 34.HCF of 100 and 55 =
  35. 35.HCF of 375 and 425 =
  36. 36.HCF of 169 and 143 =
  37. 37.HCF of 6 and 33 =
  38. 38.HCF of 266 and 247 =
  39. 39.HCF of 260 and 360 =
  40. 40.HCF of 104 and 32 =

Answer key

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

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