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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 146 · 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 247 =
  2. 2.HCF of 54 and 342 =
  3. 3.HCF of 275 and 375 =
  4. 4.HCF of 180 and 48 =
  5. 5.HCF of 85 and 35 =
  6. 6.HCF of 105 and 90 =
  7. 7.HCF of 234 and 65 =
  8. 8.HCF of 140 and 30 =
  9. 9.HCF of 152 and 48 =
  10. 10.HCF of 119 and 323 =
  11. 11.HCF of 40 and 90 =
  12. 12.HCF of 48 and 114 =
  13. 13.HCF of 72 and 480 =
  14. 14.HCF of 102 and 72 =
  15. 15.HCF of 153 and 119 =
  16. 16.HCF of 88 and 198 =
  17. 17.HCF of 99 and 22 =
  18. 18.HCF of 56 and 128 =
  19. 19.HCF of 54 and 45 =
  20. 20.HCF of 6 and 34 =
  21. 21.HCF of 49 and 112 =
  22. 22.HCF of 56 and 266 =
  23. 23.HCF of 110 and 187 =
  24. 24.HCF of 255 and 119 =
  25. 25.HCF of 12 and 8 =
  26. 26.HCF of 323 and 289 =
  27. 27.HCF of 56 and 35 =
  28. 28.HCF of 221 and 208 =
  29. 29.HCF of 168 and 132 =
  30. 30.HCF of 196 and 154 =
  31. 31.HCF of 20 and 44 =
  32. 32.HCF of 154 and 440 =
  33. 33.HCF of 475 and 225 =
  34. 34.HCF of 70 and 84 =
  35. 35.HCF of 96 and 90 =
  36. 36.HCF of 36 and 52 =
  37. 37.HCF of 60 and 42 =
  38. 38.HCF of 126 and 171 =
  39. 39.HCF of 39 and 104 =
  40. 40.HCF of 21 and 51 =

Answer key

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

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