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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 713 · 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. 1.1009³ =
  2. 2.98³ =
  3. 3.98³ =
  4. 4.1005³ =
  5. 5.1004³ =
  6. 6.1009³ =
  7. 7.91³ =
  8. 8.101³ =
  9. 9.1002³ =
  10. 10.1002³ =
  11. 11.98³ =
  12. 12.98³ =
  13. 13.93³ =
  14. 14.980³ =
  15. 15.92³ =
  16. 16.104³ =
  17. 17.103³ =
  18. 18.103³ =
  19. 19.109³ =
  20. 20.105³ =
  21. 21.994³ =
  22. 22.1013³ =
  23. 23.981³ =
  24. 24.1017³ =
  25. 25.1005³ =
  26. 26.1016³ =
  27. 27.991³ =
  28. 28.97³ =
  29. 29.95³ =
  30. 30.96³ =
  31. 31.98³ =
  32. 32.1003³ =
  33. 33.1007³ =
  34. 34.95³ =
  35. 35.992³ =
  36. 36.95³ =
  37. 37.994³ =
  38. 38.106³ =
  39. 39.1002³ =
  40. 40.109³ =

Answer key

  1. 1027243729
  2. 941192
  3. 941192
  4. 1015075125
  5. 1012048064
  6. 1027243729
  7. 753571
  8. 1030301
  9. 1006012008
  10. 1006012008
  11. 941192
  12. 941192
  13. 804357
  14. 941192000
  15. 778688
  16. 1124864
  17. 1092727
  18. 1092727
  19. 1295029
  20. 1157625
  21. 982107784
  22. 1039509197
  23. 944076141
  24. 1051871913
  25. 1015075125
  26. 1048772096
  27. 973242271
  28. 912673
  29. 857375
  30. 884736
  31. 941192
  32. 1009027027
  33. 1021147343
  34. 857375
  35. 976191488
  36. 857375
  37. 982107784
  38. 1191016
  39. 1006012008
  40. 1295029

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