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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 828 · 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. 1.91³ =
  2. 2.105³ =
  3. 3.1003³ =
  4. 4.91³ =
  5. 5.1003³ =
  6. 6.997³ =
  7. 7.91³ =
  8. 8.986³ =
  9. 9.994³ =
  10. 10.102³ =
  11. 11.99³ =
  12. 12.999³ =
  13. 13.1004³ =
  14. 14.997³ =
  15. 15.91³ =
  16. 16.109³ =
  17. 17.105³ =
  18. 18.1003³ =
  19. 19.998³ =
  20. 20.996³ =
  21. 21.1005³ =
  22. 22.102³ =
  23. 23.99³ =
  24. 24.93³ =
  25. 25.92³ =
  26. 26.102³ =
  27. 27.1001³ =
  28. 28.105³ =
  29. 29.109³ =
  30. 30.996³ =
  31. 31.93³ =
  32. 32.986³ =
  33. 33.101³ =
  34. 34.98³ =
  35. 35.1003³ =
  36. 36.103³ =
  37. 37.98³ =
  38. 38.105³ =
  39. 39.93³ =
  40. 40.1018³ =

Answer key

  1. 753571
  2. 1157625
  3. 1009027027
  4. 753571
  5. 1009027027
  6. 991026973
  7. 753571
  8. 958585256
  9. 982107784
  10. 1061208
  11. 970299
  12. 997002999
  13. 1012048064
  14. 991026973
  15. 753571
  16. 1295029
  17. 1157625
  18. 1009027027
  19. 994011992
  20. 988047936
  21. 1015075125
  22. 1061208
  23. 970299
  24. 804357
  25. 778688
  26. 1061208
  27. 1003003001
  28. 1157625
  29. 1295029
  30. 988047936
  31. 804357
  32. 958585256
  33. 1030301
  34. 941192
  35. 1009027027
  36. 1092727
  37. 941192
  38. 1157625
  39. 804357
  40. 1054977832

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