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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 855 · 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. 1.997³ =
  2. 2.981³ =
  3. 3.91³ =
  4. 4.1015³ =
  5. 5.987³ =
  6. 6.105³ =
  7. 7.97³ =
  8. 8.99³ =
  9. 9.1018³ =
  10. 10.995³ =
  11. 11.995³ =
  12. 12.991³ =
  13. 13.105³ =
  14. 14.91³ =
  15. 15.1007³ =
  16. 16.107³ =
  17. 17.1003³ =
  18. 18.97³ =
  19. 19.1002³ =
  20. 20.109³ =
  21. 21.108³ =
  22. 22.1019³ =
  23. 23.94³ =
  24. 24.1003³ =
  25. 25.108³ =
  26. 26.997³ =
  27. 27.105³ =
  28. 28.106³ =
  29. 29.983³ =
  30. 30.101³ =
  31. 31.95³ =
  32. 32.93³ =
  33. 33.92³ =
  34. 34.983³ =
  35. 35.987³ =
  36. 36.98³ =
  37. 37.1002³ =
  38. 38.109³ =
  39. 39.101³ =
  40. 40.982³ =

Answer key

  1. 991026973
  2. 944076141
  3. 753571
  4. 1045678375
  5. 961504803
  6. 1157625
  7. 912673
  8. 970299
  9. 1054977832
  10. 985074875
  11. 985074875
  12. 973242271
  13. 1157625
  14. 753571
  15. 1021147343
  16. 1225043
  17. 1009027027
  18. 912673
  19. 1006012008
  20. 1295029
  21. 1259712
  22. 1058089859
  23. 830584
  24. 1009027027
  25. 1259712
  26. 991026973
  27. 1157625
  28. 1191016
  29. 949862087
  30. 1030301
  31. 857375
  32. 804357
  33. 778688
  34. 949862087
  35. 961504803
  36. 941192
  37. 1006012008
  38. 1295029
  39. 1030301
  40. 946966168

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