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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 810 · 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. 1.105³ =
  2. 2.997³ =
  3. 3.98³ =
  4. 4.101³ =
  5. 5.996³ =
  6. 6.92³ =
  7. 7.988³ =
  8. 8.991³ =
  9. 9.1017³ =
  10. 10.106³ =
  11. 11.1009³ =
  12. 12.108³ =
  13. 13.98³ =
  14. 14.999³ =
  15. 15.106³ =
  16. 16.1013³ =
  17. 17.1007³ =
  18. 18.996³ =
  19. 19.94³ =
  20. 20.97³ =
  21. 21.1012³ =
  22. 22.96³ =
  23. 23.101³ =
  24. 24.99³ =
  25. 25.1003³ =
  26. 26.91³ =
  27. 27.102³ =
  28. 28.1009³ =
  29. 29.98³ =
  30. 30.96³ =
  31. 31.998³ =
  32. 32.101³ =
  33. 33.994³ =
  34. 34.99³ =
  35. 35.92³ =
  36. 36.985³ =
  37. 37.987³ =
  38. 38.97³ =
  39. 39.1009³ =
  40. 40.1008³ =

Answer key

  1. 1157625
  2. 991026973
  3. 941192
  4. 1030301
  5. 988047936
  6. 778688
  7. 964430272
  8. 973242271
  9. 1051871913
  10. 1191016
  11. 1027243729
  12. 1259712
  13. 941192
  14. 997002999
  15. 1191016
  16. 1039509197
  17. 1021147343
  18. 988047936
  19. 830584
  20. 912673
  21. 1036433728
  22. 884736
  23. 1030301
  24. 970299
  25. 1009027027
  26. 753571
  27. 1061208
  28. 1027243729
  29. 941192
  30. 884736
  31. 994011992
  32. 1030301
  33. 982107784
  34. 970299
  35. 778688
  36. 955671625
  37. 961504803
  38. 912673
  39. 1027243729
  40. 1024192512

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