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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 610 · 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. 3.1015³ =
  4. 4.996³ =
  5. 5.101³ =
  6. 6.98³ =
  7. 7.96³ =
  8. 8.1011³ =
  9. 9.109³ =
  10. 10.94³ =
  11. 11.94³ =
  12. 12.1013³ =
  13. 13.104³ =
  14. 14.99³ =
  15. 15.93³ =
  16. 16.999³ =
  17. 17.997³ =
  18. 18.105³ =
  19. 19.1007³ =
  20. 20.96³ =
  21. 21.93³ =
  22. 22.109³ =
  23. 23.984³ =
  24. 24.1018³ =
  25. 25.98³ =
  26. 26.982³ =
  27. 27.96³ =
  28. 28.109³ =
  29. 29.987³ =
  30. 30.95³ =
  31. 31.994³ =
  32. 32.994³ =
  33. 33.1005³ =
  34. 34.1004³ =
  35. 35.1012³ =
  36. 36.101³ =
  37. 37.999³ =
  38. 38.997³ =
  39. 39.1003³ =
  40. 40.990³ =

Answer key

  1. 979146657
  2. 753571
  3. 1045678375
  4. 988047936
  5. 1030301
  6. 941192
  7. 884736
  8. 1033364331
  9. 1295029
  10. 830584
  11. 830584
  12. 1039509197
  13. 1124864
  14. 970299
  15. 804357
  16. 997002999
  17. 991026973
  18. 1157625
  19. 1021147343
  20. 884736
  21. 804357
  22. 1295029
  23. 952763904
  24. 1054977832
  25. 941192
  26. 946966168
  27. 884736
  28. 1295029
  29. 961504803
  30. 857375
  31. 982107784
  32. 982107784
  33. 1015075125
  34. 1012048064
  35. 1036433728
  36. 1030301
  37. 997002999
  38. 991026973
  39. 1009027027
  40. 970299000

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