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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 560 · 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 80 and 75 =
  2. 2.HCF of 115 and 207 =
  3. 3.HCF of 60 and 55 =
  4. 4.HCF of 256 and 48 =
  5. 5.HCF of 117 and 54 =
  6. 6.HCF of 32 and 44 =
  7. 7.HCF of 250 and 425 =
  8. 8.HCF of 115 and 391 =
  9. 9.HCF of 143 and 110 =
  10. 10.HCF of 52 and 195 =
  11. 11.HCF of 20 and 8 =
  12. 12.HCF of 361 and 114 =
  13. 13.HCF of 40 and 88 =
  14. 14.HCF of 96 and 56 =
  15. 15.HCF of 285 and 361 =
  16. 16.HCF of 75 and 10 =
  17. 17.HCF of 400 and 225 =
  18. 18.HCF of 221 and 340 =
  19. 19.HCF of 42 and 105 =
  20. 20.HCF of 247 and 209 =
  21. 21.HCF of 182 and 252 =
  22. 22.HCF of 119 and 272 =
  23. 23.HCF of 143 and 169 =
  24. 24.HCF of 255 and 105 =
  25. 25.HCF of 399 and 294 =
  26. 26.HCF of 56 and 52 =
  27. 27.HCF of 140 and 133 =
  28. 28.HCF of 39 and 45 =
  29. 29.HCF of 114 and 102 =
  30. 30.HCF of 39 and 169 =
  31. 31.HCF of 195 and 26 =
  32. 32.HCF of 32 and 12 =
  33. 33.HCF of 100 and 280 =
  34. 34.HCF of 77 and 22 =
  35. 35.HCF of 75 and 35 =
  36. 36.HCF of 140 and 360 =
  37. 37.HCF of 60 and 72 =
  38. 38.HCF of 162 and 144 =
  39. 39.HCF of 120 and 110 =
  40. 40.HCF of 96 and 456 =

Answer key

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

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