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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 532 · 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 323 and 95 =
  2. 2.HCF of 80 and 110 =
  3. 3.HCF of 100 and 180 =
  4. 4.HCF of 399 and 315 =
  5. 5.HCF of 312 and 480 =
  6. 6.HCF of 437 and 115 =
  7. 7.HCF of 150 and 475 =
  8. 8.HCF of 42 and 224 =
  9. 9.HCF of 72 and 88 =
  10. 10.HCF of 56 and 35 =
  11. 11.HCF of 30 and 72 =
  12. 12.HCF of 136 and 221 =
  13. 13.HCF of 12 and 38 =
  14. 14.HCF of 119 and 14 =
  15. 15.HCF of 437 and 115 =
  16. 16.HCF of 360 and 96 =
  17. 17.HCF of 480 and 72 =
  18. 18.HCF of 95 and 10 =
  19. 19.HCF of 56 and 70 =
  20. 20.HCF of 70 and 75 =
  21. 21.HCF of 190 and 57 =
  22. 22.HCF of 153 and 85 =
  23. 23.HCF of 176 and 32 =
  24. 24.HCF of 500 and 325 =
  25. 25.HCF of 275 and 100 =
  26. 26.HCF of 10 and 75 =
  27. 27.HCF of 21 and 54 =
  28. 28.HCF of 456 and 312 =
  29. 29.HCF of 240 and 132 =
  30. 30.HCF of 24 and 78 =
  31. 31.HCF of 140 and 119 =
  32. 32.HCF of 66 and 30 =
  33. 33.HCF of 126 and 72 =
  34. 34.HCF of 195 and 247 =
  35. 35.HCF of 68 and 187 =
  36. 36.HCF of 42 and 72 =
  37. 37.HCF of 28 and 6 =
  38. 38.HCF of 9 and 51 =
  39. 39.HCF of 119 and 126 =
  40. 40.HCF of 45 and 36 =

Answer key

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

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