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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 685 · 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. 1.104³ =
  2. 2.985³ =
  3. 3.105³ =
  4. 4.1017³ =
  5. 5.998³ =
  6. 6.1015³ =
  7. 7.106³ =
  8. 8.1012³ =
  9. 9.107³ =
  10. 10.101³ =
  11. 11.1010³ =
  12. 12.109³ =
  13. 13.106³ =
  14. 14.97³ =
  15. 15.987³ =
  16. 16.1014³ =
  17. 17.1010³ =
  18. 18.99³ =
  19. 19.985³ =
  20. 20.102³ =
  21. 21.1016³ =
  22. 22.1020³ =
  23. 23.95³ =
  24. 24.98³ =
  25. 25.91³ =
  26. 26.1018³ =
  27. 27.985³ =
  28. 28.92³ =
  29. 29.91³ =
  30. 30.1002³ =
  31. 31.990³ =
  32. 32.104³ =
  33. 33.991³ =
  34. 34.98³ =
  35. 35.96³ =
  36. 36.989³ =
  37. 37.986³ =
  38. 38.981³ =
  39. 39.1005³ =
  40. 40.93³ =

Answer key

  1. 1124864
  2. 955671625
  3. 1157625
  4. 1051871913
  5. 994011992
  6. 1045678375
  7. 1191016
  8. 1036433728
  9. 1225043
  10. 1030301
  11. 1030301000
  12. 1295029
  13. 1191016
  14. 912673
  15. 961504803
  16. 1042590744
  17. 1030301000
  18. 970299
  19. 955671625
  20. 1061208
  21. 1048772096
  22. 1061208000
  23. 857375
  24. 941192
  25. 753571
  26. 1054977832
  27. 955671625
  28. 778688
  29. 753571
  30. 1006012008
  31. 970299000
  32. 1124864
  33. 973242271
  34. 941192
  35. 884736
  36. 967361669
  37. 958585256
  38. 944076141
  39. 1015075125
  40. 804357

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