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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 326 · 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 21 and 35 =
  2. 2.HCF of 57 and 190 =
  3. 3.HCF of 96 and 208 =
  4. 4.HCF of 340 and 320 =
  5. 5.HCF of 90 and 27 =
  6. 6.HCF of 54 and 30 =
  7. 7.HCF of 80 and 36 =
  8. 8.HCF of 95 and 266 =
  9. 9.HCF of 44 and 330 =
  10. 10.HCF of 56 and 238 =
  11. 11.HCF of 117 and 143 =
  12. 12.HCF of 250 and 475 =
  13. 13.HCF of 84 and 108 =
  14. 14.HCF of 340 and 140 =
  15. 15.HCF of 24 and 32 =
  16. 16.HCF of 56 and 98 =
  17. 17.HCF of 252 and 198 =
  18. 18.HCF of 50 and 85 =
  19. 19.HCF of 90 and 42 =
  20. 20.HCF of 80 and 95 =
  21. 21.HCF of 48 and 52 =
  22. 22.HCF of 72 and 384 =
  23. 23.HCF of 90 and 36 =
  24. 24.HCF of 304 and 361 =
  25. 25.HCF of 77 and 70 =
  26. 26.HCF of 234 and 342 =
  27. 27.HCF of 40 and 55 =
  28. 28.HCF of 323 and 68 =
  29. 29.HCF of 30 and 75 =
  30. 30.HCF of 68 and 16 =
  31. 31.HCF of 10 and 26 =
  32. 32.HCF of 22 and 38 =
  33. 33.HCF of 18 and 14 =
  34. 34.HCF of 375 and 400 =
  35. 35.HCF of 182 and 238 =
  36. 36.HCF of 126 and 35 =
  37. 37.HCF of 104 and 96 =
  38. 38.HCF of 18 and 99 =
  39. 39.HCF of 70 and 110 =
  40. 40.HCF of 55 and 176 =

Answer key

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

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