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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 69 · 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 36 and 60 =
  2. 2.HCF of 16 and 120 =
  3. 3.HCF of 65 and 39 =
  4. 4.HCF of 161 and 138 =
  5. 5.HCF of 44 and 80 =
  6. 6.HCF of 90 and 306 =
  7. 7.HCF of 72 and 66 =
  8. 8.HCF of 96 and 18 =
  9. 9.HCF of 270 and 195 =
  10. 10.HCF of 312 and 48 =
  11. 11.HCF of 210 and 56 =
  12. 12.HCF of 44 and 76 =
  13. 13.HCF of 153 and 119 =
  14. 14.HCF of 63 and 54 =
  15. 15.HCF of 75 and 100 =
  16. 16.HCF of 154 and 209 =
  17. 17.HCF of 153 and 170 =
  18. 18.HCF of 285 and 60 =
  19. 19.HCF of 15 and 55 =
  20. 20.HCF of 132 and 77 =
  21. 21.HCF of 399 and 294 =
  22. 22.HCF of 100 and 30 =
  23. 23.HCF of 100 and 325 =
  24. 24.HCF of 65 and 70 =
  25. 25.HCF of 112 and 266 =
  26. 26.HCF of 60 and 160 =
  27. 27.HCF of 320 and 48 =
  28. 28.HCF of 35 and 126 =
  29. 29.HCF of 456 and 48 =
  30. 30.HCF of 64 and 52 =
  31. 31.HCF of 44 and 110 =
  32. 32.HCF of 375 and 50 =
  33. 33.HCF of 324 and 306 =
  34. 34.HCF of 285 and 38 =
  35. 35.HCF of 176 and 256 =
  36. 36.HCF of 68 and 51 =
  37. 37.HCF of 224 and 238 =
  38. 38.HCF of 78 and 42 =
  39. 39.HCF of 40 and 32 =
  40. 40.HCF of 78 and 221 =

Answer key

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

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