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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 565 · 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. 1.987³ =
  2. 2.1002³ =
  3. 3.95³ =
  4. 4.986³ =
  5. 5.91³ =
  6. 6.104³ =
  7. 7.999³ =
  8. 8.109³ =
  9. 9.109³ =
  10. 10.990³ =
  11. 11.97³ =
  12. 12.983³ =
  13. 13.91³ =
  14. 14.109³ =
  15. 15.1009³ =
  16. 16.97³ =
  17. 17.1012³ =
  18. 18.995³ =
  19. 19.105³ =
  20. 20.1015³ =
  21. 21.106³ =
  22. 22.999³ =
  23. 23.101³ =
  24. 24.92³ =
  25. 25.109³ =
  26. 26.99³ =
  27. 27.997³ =
  28. 28.1006³ =
  29. 29.999³ =
  30. 30.99³ =
  31. 31.96³ =
  32. 32.94³ =
  33. 33.1015³ =
  34. 34.981³ =
  35. 35.107³ =
  36. 36.1020³ =
  37. 37.102³ =
  38. 38.99³ =
  39. 39.987³ =
  40. 40.1016³ =

Answer key

  1. 961504803
  2. 1006012008
  3. 857375
  4. 958585256
  5. 753571
  6. 1124864
  7. 997002999
  8. 1295029
  9. 1295029
  10. 970299000
  11. 912673
  12. 949862087
  13. 753571
  14. 1295029
  15. 1027243729
  16. 912673
  17. 1036433728
  18. 985074875
  19. 1157625
  20. 1045678375
  21. 1191016
  22. 997002999
  23. 1030301
  24. 778688
  25. 1295029
  26. 970299
  27. 991026973
  28. 1018108216
  29. 997002999
  30. 970299
  31. 884736
  32. 830584
  33. 1045678375
  34. 944076141
  35. 1225043
  36. 1061208000
  37. 1061208
  38. 970299
  39. 961504803
  40. 1048772096

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