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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 175 · 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 51 and 24 =
  2. 2.HCF of 224 and 176 =
  3. 3.HCF of 132 and 286 =
  4. 4.HCF of 140 and 180 =
  5. 5.HCF of 28 and 16 =
  6. 6.HCF of 40 and 220 =
  7. 7.HCF of 100 and 75 =
  8. 8.HCF of 51 and 221 =
  9. 9.HCF of 36 and 51 =
  10. 10.HCF of 198 and 180 =
  11. 11.HCF of 110 and 90 =
  12. 12.HCF of 105 and 91 =
  13. 13.HCF of 216 and 60 =
  14. 14.HCF of 51 and 119 =
  15. 15.HCF of 30 and 22 =
  16. 16.HCF of 98 and 35 =
  17. 17.HCF of 24 and 36 =
  18. 18.HCF of 285 and 247 =
  19. 19.HCF of 391 and 345 =
  20. 20.HCF of 44 and 187 =
  21. 21.HCF of 437 and 368 =
  22. 22.HCF of 130 and 50 =
  23. 23.HCF of 272 and 64 =
  24. 24.HCF of 224 and 80 =
  25. 25.HCF of 60 and 400 =
  26. 26.HCF of 260 and 80 =
  27. 27.HCF of 425 and 325 =
  28. 28.HCF of 176 and 272 =
  29. 29.HCF of 80 and 190 =
  30. 30.HCF of 90 and 80 =
  31. 31.HCF of 144 and 27 =
  32. 32.HCF of 175 and 75 =
  33. 33.HCF of 105 and 60 =
  34. 34.HCF of 121 and 88 =
  35. 35.HCF of 143 and 195 =
  36. 36.HCF of 45 and 55 =
  37. 37.HCF of 143 and 104 =
  38. 38.HCF of 64 and 48 =
  39. 39.HCF of 60 and 78 =
  40. 40.HCF of 224 and 70 =

Answer key

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

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