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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 791 · 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. 1.99³ =
  2. 2.990³ =
  3. 3.999³ =
  4. 4.999³ =
  5. 5.1013³ =
  6. 6.991³ =
  7. 7.108³ =
  8. 8.107³ =
  9. 9.1020³ =
  10. 10.107³ =
  11. 11.1012³ =
  12. 12.987³ =
  13. 13.96³ =
  14. 14.91³ =
  15. 15.94³ =
  16. 16.92³ =
  17. 17.995³ =
  18. 18.104³ =
  19. 19.1016³ =
  20. 20.1011³ =
  21. 21.95³ =
  22. 22.93³ =
  23. 23.985³ =
  24. 24.104³ =
  25. 25.98³ =
  26. 26.97³ =
  27. 27.99³ =
  28. 28.108³ =
  29. 29.1014³ =
  30. 30.987³ =
  31. 31.1009³ =
  32. 32.103³ =
  33. 33.91³ =
  34. 34.1016³ =
  35. 35.108³ =
  36. 36.985³ =
  37. 37.106³ =
  38. 38.104³ =
  39. 39.92³ =
  40. 40.995³ =

Answer key

  1. 970299
  2. 970299000
  3. 997002999
  4. 997002999
  5. 1039509197
  6. 973242271
  7. 1259712
  8. 1225043
  9. 1061208000
  10. 1225043
  11. 1036433728
  12. 961504803
  13. 884736
  14. 753571
  15. 830584
  16. 778688
  17. 985074875
  18. 1124864
  19. 1048772096
  20. 1033364331
  21. 857375
  22. 804357
  23. 955671625
  24. 1124864
  25. 941192
  26. 912673
  27. 970299
  28. 1259712
  29. 1042590744
  30. 961504803
  31. 1027243729
  32. 1092727
  33. 753571
  34. 1048772096
  35. 1259712
  36. 955671625
  37. 1191016
  38. 1124864
  39. 778688
  40. 985074875

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