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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 388 · 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 99 and 154 =
  2. 2.HCF of 375 and 100 =
  3. 3.HCF of 216 and 198 =
  4. 4.HCF of 128 and 152 =
  5. 5.HCF of 28 and 80 =
  6. 6.HCF of 18 and 30 =
  7. 7.HCF of 198 and 242 =
  8. 8.HCF of 85 and 95 =
  9. 9.HCF of 384 and 216 =
  10. 10.HCF of 57 and 33 =
  11. 11.HCF of 35 and 119 =
  12. 12.HCF of 169 and 130 =
  13. 13.HCF of 135 and 117 =
  14. 14.HCF of 16 and 56 =
  15. 15.HCF of 72 and 120 =
  16. 16.HCF of 36 and 42 =
  17. 17.HCF of 408 and 144 =
  18. 18.HCF of 100 and 190 =
  19. 19.HCF of 180 and 171 =
  20. 20.HCF of 260 and 221 =
  21. 21.HCF of 133 and 140 =
  22. 22.HCF of 221 and 156 =
  23. 23.HCF of 95 and 38 =
  24. 24.HCF of 133 and 361 =
  25. 25.HCF of 55 and 75 =
  26. 26.HCF of 40 and 180 =
  27. 27.HCF of 57 and 76 =
  28. 28.HCF of 460 and 69 =
  29. 29.HCF of 8 and 36 =
  30. 30.HCF of 54 and 126 =
  31. 31.HCF of 119 and 204 =
  32. 32.HCF of 168 and 70 =
  33. 33.HCF of 35 and 133 =
  34. 34.HCF of 35 and 126 =
  35. 35.HCF of 374 and 352 =
  36. 36.HCF of 150 and 325 =
  37. 37.HCF of 110 and 30 =
  38. 38.HCF of 76 and 247 =
  39. 39.HCF of 168 and 156 =
  40. 40.HCF of 68 and 32 =

Answer key

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

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