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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 573 · 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 32 and 48 =
  2. 2.HCF of 42 and 96 =
  3. 3.HCF of 52 and 24 =
  4. 4.HCF of 304 and 133 =
  5. 5.HCF of 322 and 69 =
  6. 6.HCF of 264 and 120 =
  7. 7.HCF of 125 and 200 =
  8. 8.HCF of 28 and 8 =
  9. 9.HCF of 88 and 330 =
  10. 10.HCF of 180 and 162 =
  11. 11.HCF of 20 and 50 =
  12. 12.HCF of 200 and 425 =
  13. 13.HCF of 270 and 75 =
  14. 14.HCF of 10 and 22 =
  15. 15.HCF of 60 and 28 =
  16. 16.HCF of 192 and 304 =
  17. 17.HCF of 456 and 264 =
  18. 18.HCF of 210 and 195 =
  19. 19.HCF of 51 and 34 =
  20. 20.HCF of 95 and 76 =
  21. 21.HCF of 102 and 119 =
  22. 22.HCF of 396 and 110 =
  23. 23.HCF of 133 and 76 =
  24. 24.HCF of 24 and 156 =
  25. 25.HCF of 133 and 285 =
  26. 26.HCF of 275 and 150 =
  27. 27.HCF of 380 and 209 =
  28. 28.HCF of 40 and 68 =
  29. 29.HCF of 69 and 322 =
  30. 30.HCF of 234 and 36 =
  31. 31.HCF of 42 and 147 =
  32. 32.HCF of 104 and 152 =
  33. 33.HCF of 78 and 247 =
  34. 34.HCF of 20 and 65 =
  35. 35.HCF of 144 and 45 =
  36. 36.HCF of 143 and 55 =
  37. 37.HCF of 110 and 180 =
  38. 38.HCF of 30 and 14 =
  39. 39.HCF of 95 and 65 =
  40. 40.HCF of 126 and 196 =

Answer key

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

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