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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 987 · 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 375 and 350 =
  2. 2.HCF of 98 and 28 =
  3. 3.HCF of 27 and 12 =
  4. 4.HCF of 18 and 22 =
  5. 5.HCF of 325 and 100 =
  6. 6.HCF of 266 and 84 =
  7. 7.HCF of 15 and 39 =
  8. 8.HCF of 95 and 38 =
  9. 9.HCF of 98 and 35 =
  10. 10.HCF of 60 and 105 =
  11. 11.HCF of 57 and 323 =
  12. 12.HCF of 182 and 143 =
  13. 13.HCF of 450 and 325 =
  14. 14.HCF of 12 and 21 =
  15. 15.HCF of 24 and 128 =
  16. 16.HCF of 45 and 165 =
  17. 17.HCF of 195 and 169 =
  18. 18.HCF of 380 and 160 =
  19. 19.HCF of 102 and 24 =
  20. 20.HCF of 90 and 99 =
  21. 21.HCF of 114 and 323 =
  22. 22.HCF of 55 and 10 =
  23. 23.HCF of 69 and 391 =
  24. 24.HCF of 36 and 228 =
  25. 25.HCF of 152 and 133 =
  26. 26.HCF of 323 and 228 =
  27. 27.HCF of 35 and 10 =
  28. 28.HCF of 49 and 21 =
  29. 29.HCF of 224 and 126 =
  30. 30.HCF of 96 and 360 =
  31. 31.HCF of 380 and 40 =
  32. 32.HCF of 70 and 98 =
  33. 33.HCF of 210 and 165 =
  34. 34.HCF of 16 and 56 =
  35. 35.HCF of 104 and 56 =
  36. 36.HCF of 32 and 10 =
  37. 37.HCF of 40 and 220 =
  38. 38.HCF of 105 and 357 =
  39. 39.HCF of 300 and 105 =
  40. 40.HCF of 102 and 36 =

Answer key

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

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