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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 301 · 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 88 and 64 =
  2. 2.HCF of 133 and 209 =
  3. 3.HCF of 36 and 99 =
  4. 4.HCF of 323 and 76 =
  5. 5.HCF of 40 and 136 =
  6. 6.HCF of 48 and 256 =
  7. 7.HCF of 84 and 399 =
  8. 8.HCF of 119 and 221 =
  9. 9.HCF of 138 and 115 =
  10. 10.HCF of 176 and 77 =
  11. 11.HCF of 96 and 90 =
  12. 12.HCF of 21 and 119 =
  13. 13.HCF of 54 and 90 =
  14. 14.HCF of 40 and 220 =
  15. 15.HCF of 208 and 32 =
  16. 16.HCF of 216 and 156 =
  17. 17.HCF of 125 and 300 =
  18. 18.HCF of 160 and 112 =
  19. 19.HCF of 12 and 32 =
  20. 20.HCF of 38 and 12 =
  21. 21.HCF of 60 and 114 =
  22. 22.HCF of 242 and 330 =
  23. 23.HCF of 216 and 192 =
  24. 24.HCF of 96 and 112 =
  25. 25.HCF of 112 and 208 =
  26. 26.HCF of 99 and 81 =
  27. 27.HCF of 52 and 40 =
  28. 28.HCF of 36 and 68 =
  29. 29.HCF of 165 and 90 =
  30. 30.HCF of 147 and 105 =
  31. 31.HCF of 247 and 26 =
  32. 32.HCF of 8 and 38 =
  33. 33.HCF of 184 and 207 =
  34. 34.HCF of 361 and 285 =
  35. 35.HCF of 247 and 380 =
  36. 36.HCF of 475 and 75 =
  37. 37.HCF of 357 and 105 =
  38. 38.HCF of 228 and 361 =
  39. 39.HCF of 110 and 66 =
  40. 40.HCF of 75 and 270 =

Answer key

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

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