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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 68 · 40 sums
TalentJR

The trick (Yavadunam): Left part: the number + twice the difference. Middle part: 3 × the difference squared. Right part: the difference cubed. Each right-hand part has as many digits as the base has zeros — carry the extra, borrow if a part is negative.

NameDateTime takenScore ___ / 40
  1. 1.993³ =
  2. 2.91³ =
  3. 3.102³ =
  4. 4.1019³ =
  5. 5.96³ =
  6. 6.99³ =
  7. 7.1010³ =
  8. 8.104³ =
  9. 9.991³ =
  10. 10.99³ =
  11. 11.989³ =
  12. 12.997³ =
  13. 13.990³ =
  14. 14.1004³ =
  15. 15.1013³ =
  16. 16.1002³ =
  17. 17.981³ =
  18. 18.98³ =
  19. 19.94³ =
  20. 20.1010³ =
  21. 21.987³ =
  22. 22.91³ =
  23. 23.104³ =
  24. 24.1003³ =
  25. 25.103³ =
  26. 26.998³ =
  27. 27.97³ =
  28. 28.987³ =
  29. 29.105³ =
  30. 30.1009³ =
  31. 31.1018³ =
  32. 32.103³ =
  33. 33.93³ =
  34. 34.987³ =
  35. 35.102³ =
  36. 36.1011³ =
  37. 37.93³ =
  38. 38.997³ =
  39. 39.103³ =
  40. 40.1015³ =

Answer key

  1. 979146657
  2. 753571
  3. 1061208
  4. 1058089859
  5. 884736
  6. 970299
  7. 1030301000
  8. 1124864
  9. 973242271
  10. 970299
  11. 967361669
  12. 991026973
  13. 970299000
  14. 1012048064
  15. 1039509197
  16. 1006012008
  17. 944076141
  18. 941192
  19. 830584
  20. 1030301000
  21. 961504803
  22. 753571
  23. 1124864
  24. 1009027027
  25. 1092727
  26. 994011992
  27. 912673
  28. 961504803
  29. 1157625
  30. 1027243729
  31. 1054977832
  32. 1092727
  33. 804357
  34. 961504803
  35. 1061208
  36. 1033364331
  37. 804357
  38. 991026973
  39. 1092727
  40. 1045678375

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