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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 48 · 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. 1.109³ =
  2. 2.101³ =
  3. 3.91³ =
  4. 4.91³ =
  5. 5.91³ =
  6. 6.106³ =
  7. 7.997³ =
  8. 8.109³ =
  9. 9.1005³ =
  10. 10.980³ =
  11. 11.1015³ =
  12. 12.109³ =
  13. 13.996³ =
  14. 14.984³ =
  15. 15.1016³ =
  16. 16.985³ =
  17. 17.1006³ =
  18. 18.98³ =
  19. 19.104³ =
  20. 20.104³ =
  21. 21.986³ =
  22. 22.984³ =
  23. 23.994³ =
  24. 24.95³ =
  25. 25.1018³ =
  26. 26.94³ =
  27. 27.1013³ =
  28. 28.97³ =
  29. 29.1003³ =
  30. 30.1005³ =
  31. 31.99³ =
  32. 32.101³ =
  33. 33.104³ =
  34. 34.108³ =
  35. 35.104³ =
  36. 36.998³ =
  37. 37.96³ =
  38. 38.92³ =
  39. 39.1006³ =
  40. 40.92³ =

Answer key

  1. 1295029
  2. 1030301
  3. 753571
  4. 753571
  5. 753571
  6. 1191016
  7. 991026973
  8. 1295029
  9. 1015075125
  10. 941192000
  11. 1045678375
  12. 1295029
  13. 988047936
  14. 952763904
  15. 1048772096
  16. 955671625
  17. 1018108216
  18. 941192
  19. 1124864
  20. 1124864
  21. 958585256
  22. 952763904
  23. 982107784
  24. 857375
  25. 1054977832
  26. 830584
  27. 1039509197
  28. 912673
  29. 1009027027
  30. 1015075125
  31. 970299
  32. 1030301
  33. 1124864
  34. 1259712
  35. 1124864
  36. 994011992
  37. 884736
  38. 778688
  39. 1018108216
  40. 778688

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