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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 199 · 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. 1.91³ =
  2. 2.97³ =
  3. 3.1009³ =
  4. 4.94³ =
  5. 5.1001³ =
  6. 6.997³ =
  7. 7.1012³ =
  8. 8.986³ =
  9. 9.991³ =
  10. 10.1008³ =
  11. 11.1009³ =
  12. 12.98³ =
  13. 13.993³ =
  14. 14.1011³ =
  15. 15.103³ =
  16. 16.102³ =
  17. 17.103³ =
  18. 18.109³ =
  19. 19.983³ =
  20. 20.1010³ =
  21. 21.97³ =
  22. 22.99³ =
  23. 23.105³ =
  24. 24.996³ =
  25. 25.99³ =
  26. 26.93³ =
  27. 27.95³ =
  28. 28.94³ =
  29. 29.97³ =
  30. 30.101³ =
  31. 31.1020³ =
  32. 32.980³ =
  33. 33.98³ =
  34. 34.1003³ =
  35. 35.95³ =
  36. 36.987³ =
  37. 37.98³ =
  38. 38.1012³ =
  39. 39.103³ =
  40. 40.1018³ =

Answer key

  1. 753571
  2. 912673
  3. 1027243729
  4. 830584
  5. 1003003001
  6. 991026973
  7. 1036433728
  8. 958585256
  9. 973242271
  10. 1024192512
  11. 1027243729
  12. 941192
  13. 979146657
  14. 1033364331
  15. 1092727
  16. 1061208
  17. 1092727
  18. 1295029
  19. 949862087
  20. 1030301000
  21. 912673
  22. 970299
  23. 1157625
  24. 988047936
  25. 970299
  26. 804357
  27. 857375
  28. 830584
  29. 912673
  30. 1030301
  31. 1061208000
  32. 941192000
  33. 941192
  34. 1009027027
  35. 857375
  36. 961504803
  37. 941192
  38. 1036433728
  39. 1092727
  40. 1054977832

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