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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 8 · 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. 1.1004³ =
  2. 2.990³ =
  3. 3.986³ =
  4. 4.92³ =
  5. 5.1010³ =
  6. 6.984³ =
  7. 7.98³ =
  8. 8.986³ =
  9. 9.1001³ =
  10. 10.995³ =
  11. 11.101³ =
  12. 12.99³ =
  13. 13.992³ =
  14. 14.106³ =
  15. 15.1006³ =
  16. 16.97³ =
  17. 17.1003³ =
  18. 18.980³ =
  19. 19.991³ =
  20. 20.991³ =
  21. 21.104³ =
  22. 22.92³ =
  23. 23.104³ =
  24. 24.1009³ =
  25. 25.94³ =
  26. 26.1017³ =
  27. 27.985³ =
  28. 28.101³ =
  29. 29.94³ =
  30. 30.101³ =
  31. 31.99³ =
  32. 32.1010³ =
  33. 33.93³ =
  34. 34.109³ =
  35. 35.1019³ =
  36. 36.99³ =
  37. 37.980³ =
  38. 38.107³ =
  39. 39.1004³ =
  40. 40.986³ =

Answer key

  1. 1012048064
  2. 970299000
  3. 958585256
  4. 778688
  5. 1030301000
  6. 952763904
  7. 941192
  8. 958585256
  9. 1003003001
  10. 985074875
  11. 1030301
  12. 970299
  13. 976191488
  14. 1191016
  15. 1018108216
  16. 912673
  17. 1009027027
  18. 941192000
  19. 973242271
  20. 973242271
  21. 1124864
  22. 778688
  23. 1124864
  24. 1027243729
  25. 830584
  26. 1051871913
  27. 955671625
  28. 1030301
  29. 830584
  30. 1030301
  31. 970299
  32. 1030301000
  33. 804357
  34. 1295029
  35. 1058089859
  36. 970299
  37. 941192000
  38. 1225043
  39. 1012048064
  40. 958585256

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