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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 874 · 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. 1.990³ =
  2. 2.1013³ =
  3. 3.103³ =
  4. 4.990³ =
  5. 5.107³ =
  6. 6.1012³ =
  7. 7.1008³ =
  8. 8.109³ =
  9. 9.98³ =
  10. 10.97³ =
  11. 11.97³ =
  12. 12.1012³ =
  13. 13.95³ =
  14. 14.97³ =
  15. 15.93³ =
  16. 16.1015³ =
  17. 17.1011³ =
  18. 18.1010³ =
  19. 19.982³ =
  20. 20.982³ =
  21. 21.995³ =
  22. 22.995³ =
  23. 23.92³ =
  24. 24.109³ =
  25. 25.91³ =
  26. 26.994³ =
  27. 27.106³ =
  28. 28.109³ =
  29. 29.104³ =
  30. 30.999³ =
  31. 31.996³ =
  32. 32.92³ =
  33. 33.101³ =
  34. 34.983³ =
  35. 35.106³ =
  36. 36.107³ =
  37. 37.104³ =
  38. 38.981³ =
  39. 39.1004³ =
  40. 40.105³ =

Answer key

  1. 970299000
  2. 1039509197
  3. 1092727
  4. 970299000
  5. 1225043
  6. 1036433728
  7. 1024192512
  8. 1295029
  9. 941192
  10. 912673
  11. 912673
  12. 1036433728
  13. 857375
  14. 912673
  15. 804357
  16. 1045678375
  17. 1033364331
  18. 1030301000
  19. 946966168
  20. 946966168
  21. 985074875
  22. 985074875
  23. 778688
  24. 1295029
  25. 753571
  26. 982107784
  27. 1191016
  28. 1295029
  29. 1124864
  30. 997002999
  31. 988047936
  32. 778688
  33. 1030301
  34. 949862087
  35. 1191016
  36. 1225043
  37. 1124864
  38. 944076141
  39. 1012048064
  40. 1157625

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