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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 373 · 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. 1.92³ =
  2. 2.992³ =
  3. 3.91³ =
  4. 4.95³ =
  5. 5.1009³ =
  6. 6.1018³ =
  7. 7.99³ =
  8. 8.997³ =
  9. 9.92³ =
  10. 10.1001³ =
  11. 11.997³ =
  12. 12.1003³ =
  13. 13.99³ =
  14. 14.105³ =
  15. 15.98³ =
  16. 16.106³ =
  17. 17.104³ =
  18. 18.93³ =
  19. 19.1006³ =
  20. 20.106³ =
  21. 21.97³ =
  22. 22.1016³ =
  23. 23.981³ =
  24. 24.1019³ =
  25. 25.1012³ =
  26. 26.1005³ =
  27. 27.92³ =
  28. 28.101³ =
  29. 29.1017³ =
  30. 30.109³ =
  31. 31.99³ =
  32. 32.981³ =
  33. 33.91³ =
  34. 34.984³ =
  35. 35.1011³ =
  36. 36.107³ =
  37. 37.986³ =
  38. 38.106³ =
  39. 39.97³ =
  40. 40.983³ =

Answer key

  1. 778688
  2. 976191488
  3. 753571
  4. 857375
  5. 1027243729
  6. 1054977832
  7. 970299
  8. 991026973
  9. 778688
  10. 1003003001
  11. 991026973
  12. 1009027027
  13. 970299
  14. 1157625
  15. 941192
  16. 1191016
  17. 1124864
  18. 804357
  19. 1018108216
  20. 1191016
  21. 912673
  22. 1048772096
  23. 944076141
  24. 1058089859
  25. 1036433728
  26. 1015075125
  27. 778688
  28. 1030301
  29. 1051871913
  30. 1295029
  31. 970299
  32. 944076141
  33. 753571
  34. 952763904
  35. 1033364331
  36. 1225043
  37. 958585256
  38. 1191016
  39. 912673
  40. 949862087

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