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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 732 · 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 30 and 35 =
  2. 2.HCF of 208 and 169 =
  3. 3.HCF of 38 and 6 =
  4. 4.HCF of 70 and 20 =
  5. 5.HCF of 450 and 125 =
  6. 6.HCF of 156 and 36 =
  7. 7.HCF of 14 and 40 =
  8. 8.HCF of 40 and 35 =
  9. 9.HCF of 34 and 323 =
  10. 10.HCF of 342 and 360 =
  11. 11.HCF of 14 and 20 =
  12. 12.HCF of 360 and 48 =
  13. 13.HCF of 252 and 98 =
  14. 14.HCF of 456 and 216 =
  15. 15.HCF of 20 and 52 =
  16. 16.HCF of 112 and 91 =
  17. 17.HCF of 110 and 154 =
  18. 18.HCF of 27 and 45 =
  19. 19.HCF of 143 and 195 =
  20. 20.HCF of 275 and 450 =
  21. 21.HCF of 273 and 315 =
  22. 22.HCF of 56 and 20 =
  23. 23.HCF of 288 and 198 =
  24. 24.HCF of 210 and 285 =
  25. 25.HCF of 170 and 150 =
  26. 26.HCF of 117 and 182 =
  27. 27.HCF of 28 and 38 =
  28. 28.HCF of 20 and 6 =
  29. 29.HCF of 104 and 72 =
  30. 30.HCF of 270 and 195 =
  31. 31.HCF of 360 and 380 =
  32. 32.HCF of 63 and 112 =
  33. 33.HCF of 24 and 76 =
  34. 34.HCF of 70 and 168 =
  35. 35.HCF of 125 and 350 =
  36. 36.HCF of 345 and 299 =
  37. 37.HCF of 88 and 187 =
  38. 38.HCF of 10 and 4 =
  39. 39.HCF of 40 and 56 =
  40. 40.HCF of 60 and 70 =

Answer key

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

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