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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 919 · 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. 2.92³ =
  3. 3.1013³ =
  4. 4.108³ =
  5. 5.103³ =
  6. 6.988³ =
  7. 7.98³ =
  8. 8.91³ =
  9. 9.1019³ =
  10. 10.1007³ =
  11. 11.98³ =
  12. 12.92³ =
  13. 13.985³ =
  14. 14.104³ =
  15. 15.99³ =
  16. 16.109³ =
  17. 17.108³ =
  18. 18.1012³ =
  19. 19.91³ =
  20. 20.97³ =
  21. 21.999³ =
  22. 22.102³ =
  23. 23.98³ =
  24. 24.981³ =
  25. 25.982³ =
  26. 26.95³ =
  27. 27.981³ =
  28. 28.91³ =
  29. 29.92³ =
  30. 30.92³ =
  31. 31.104³ =
  32. 32.93³ =
  33. 33.97³ =
  34. 34.996³ =
  35. 35.995³ =
  36. 36.1005³ =
  37. 37.1020³ =
  38. 38.1020³ =
  39. 39.103³ =
  40. 40.104³ =

Answer key

  1. 1012048064
  2. 778688
  3. 1039509197
  4. 1259712
  5. 1092727
  6. 964430272
  7. 941192
  8. 753571
  9. 1058089859
  10. 1021147343
  11. 941192
  12. 778688
  13. 955671625
  14. 1124864
  15. 970299
  16. 1295029
  17. 1259712
  18. 1036433728
  19. 753571
  20. 912673
  21. 997002999
  22. 1061208
  23. 941192
  24. 944076141
  25. 946966168
  26. 857375
  27. 944076141
  28. 753571
  29. 778688
  30. 778688
  31. 1124864
  32. 804357
  33. 912673
  34. 988047936
  35. 985074875
  36. 1015075125
  37. 1061208000
  38. 1061208000
  39. 1092727
  40. 1124864

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