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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 522 · 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 35 and 84 =
  2. 2.HCF of 44 and 36 =
  3. 3.HCF of 255 and 150 =
  4. 4.HCF of 78 and 65 =
  5. 5.HCF of 260 and 80 =
  6. 6.HCF of 126 and 288 =
  7. 7.HCF of 44 and 40 =
  8. 8.HCF of 18 and 33 =
  9. 9.HCF of 140 and 133 =
  10. 10.HCF of 260 and 320 =
  11. 11.HCF of 312 and 432 =
  12. 12.HCF of 90 and 48 =
  13. 13.HCF of 140 and 200 =
  14. 14.HCF of 143 and 260 =
  15. 15.HCF of 255 and 136 =
  16. 16.HCF of 247 and 266 =
  17. 17.HCF of 48 and 102 =
  18. 18.HCF of 198 and 176 =
  19. 19.HCF of 190 and 160 =
  20. 20.HCF of 450 and 175 =
  21. 21.HCF of 220 and 40 =
  22. 22.HCF of 176 and 66 =
  23. 23.HCF of 120 and 136 =
  24. 24.HCF of 24 and 51 =
  25. 25.HCF of 24 and 36 =
  26. 26.HCF of 154 and 112 =
  27. 27.HCF of 169 and 26 =
  28. 28.HCF of 210 and 63 =
  29. 29.HCF of 340 and 289 =
  30. 30.HCF of 18 and 63 =
  31. 31.HCF of 175 and 75 =
  32. 32.HCF of 119 and 51 =
  33. 33.HCF of 65 and 35 =
  34. 34.HCF of 408 and 216 =
  35. 35.HCF of 16 and 120 =
  36. 36.HCF of 36 and 192 =
  37. 37.HCF of 102 and 114 =
  38. 38.HCF of 44 and 242 =
  39. 39.HCF of 210 and 135 =
  40. 40.HCF of 80 and 260 =

Answer key

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

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