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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 768 · 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 220 and 180 =
  2. 2.HCF of 256 and 112 =
  3. 3.HCF of 24 and 128 =
  4. 4.HCF of 70 and 130 =
  5. 5.HCF of 323 and 272 =
  6. 6.HCF of 112 and 288 =
  7. 7.HCF of 75 and 55 =
  8. 8.HCF of 14 and 24 =
  9. 9.HCF of 55 and 198 =
  10. 10.HCF of 28 and 48 =
  11. 11.HCF of 48 and 15 =
  12. 12.HCF of 68 and 20 =
  13. 13.HCF of 39 and 260 =
  14. 14.HCF of 180 and 48 =
  15. 15.HCF of 80 and 104 =
  16. 16.HCF of 396 and 286 =
  17. 17.HCF of 396 and 286 =
  18. 18.HCF of 42 and 224 =
  19. 19.HCF of 91 and 84 =
  20. 20.HCF of 45 and 171 =
  21. 21.HCF of 68 and 12 =
  22. 22.HCF of 95 and 171 =
  23. 23.HCF of 255 and 323 =
  24. 24.HCF of 108 and 96 =
  25. 25.HCF of 105 and 119 =
  26. 26.HCF of 200 and 325 =
  27. 27.HCF of 140 and 90 =
  28. 28.HCF of 30 and 105 =
  29. 29.HCF of 216 and 60 =
  30. 30.HCF of 414 and 299 =
  31. 31.HCF of 84 and 133 =
  32. 32.HCF of 240 and 255 =
  33. 33.HCF of 272 and 224 =
  34. 34.HCF of 100 and 55 =
  35. 35.HCF of 247 and 76 =
  36. 36.HCF of 104 and 80 =
  37. 37.HCF of 100 and 220 =
  38. 38.HCF of 126 and 105 =
  39. 39.HCF of 150 and 70 =
  40. 40.HCF of 320 and 48 =

Answer key

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

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