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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 201 · 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. 1.987³ =
  2. 2.103³ =
  3. 3.1004³ =
  4. 4.102³ =
  5. 5.996³ =
  6. 6.1004³ =
  7. 7.98³ =
  8. 8.103³ =
  9. 9.97³ =
  10. 10.105³ =
  11. 11.102³ =
  12. 12.101³ =
  13. 13.995³ =
  14. 14.96³ =
  15. 15.1020³ =
  16. 16.104³ =
  17. 17.97³ =
  18. 18.94³ =
  19. 19.94³ =
  20. 20.986³ =
  21. 21.96³ =
  22. 22.107³ =
  23. 23.99³ =
  24. 24.92³ =
  25. 25.106³ =
  26. 26.1009³ =
  27. 27.1001³ =
  28. 28.104³ =
  29. 29.1005³ =
  30. 30.97³ =
  31. 31.1005³ =
  32. 32.109³ =
  33. 33.990³ =
  34. 34.981³ =
  35. 35.99³ =
  36. 36.92³ =
  37. 37.1008³ =
  38. 38.91³ =
  39. 39.97³ =
  40. 40.987³ =

Answer key

  1. 961504803
  2. 1092727
  3. 1012048064
  4. 1061208
  5. 988047936
  6. 1012048064
  7. 941192
  8. 1092727
  9. 912673
  10. 1157625
  11. 1061208
  12. 1030301
  13. 985074875
  14. 884736
  15. 1061208000
  16. 1124864
  17. 912673
  18. 830584
  19. 830584
  20. 958585256
  21. 884736
  22. 1225043
  23. 970299
  24. 778688
  25. 1191016
  26. 1027243729
  27. 1003003001
  28. 1124864
  29. 1015075125
  30. 912673
  31. 1015075125
  32. 1295029
  33. 970299000
  34. 944076141
  35. 970299
  36. 778688
  37. 1024192512
  38. 753571
  39. 912673
  40. 961504803

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