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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 885 · 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. 2.989³ =
  3. 3.92³ =
  4. 4.95³ =
  5. 5.1009³ =
  6. 6.1013³ =
  7. 7.982³ =
  8. 8.1003³ =
  9. 9.1014³ =
  10. 10.96³ =
  11. 11.92³ =
  12. 12.99³ =
  13. 13.104³ =
  14. 14.988³ =
  15. 15.105³ =
  16. 16.94³ =
  17. 17.985³ =
  18. 18.93³ =
  19. 19.105³ =
  20. 20.99³ =
  21. 21.988³ =
  22. 22.97³ =
  23. 23.1019³ =
  24. 24.96³ =
  25. 25.99³ =
  26. 26.980³ =
  27. 27.97³ =
  28. 28.985³ =
  29. 29.981³ =
  30. 30.104³ =
  31. 31.99³ =
  32. 32.94³ =
  33. 33.95³ =
  34. 34.109³ =
  35. 35.984³ =
  36. 36.1004³ =
  37. 37.985³ =
  38. 38.1006³ =
  39. 39.108³ =
  40. 40.984³ =

Answer key

  1. 991026973
  2. 967361669
  3. 778688
  4. 857375
  5. 1027243729
  6. 1039509197
  7. 946966168
  8. 1009027027
  9. 1042590744
  10. 884736
  11. 778688
  12. 970299
  13. 1124864
  14. 964430272
  15. 1157625
  16. 830584
  17. 955671625
  18. 804357
  19. 1157625
  20. 970299
  21. 964430272
  22. 912673
  23. 1058089859
  24. 884736
  25. 970299
  26. 941192000
  27. 912673
  28. 955671625
  29. 944076141
  30. 1124864
  31. 970299
  32. 830584
  33. 857375
  34. 1295029
  35. 952763904
  36. 1012048064
  37. 955671625
  38. 1018108216
  39. 1259712
  40. 952763904

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