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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 688 · 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. 1.102³ =
  2. 2.93³ =
  3. 3.105³ =
  4. 4.1019³ =
  5. 5.98³ =
  6. 6.989³ =
  7. 7.92³ =
  8. 8.91³ =
  9. 9.1010³ =
  10. 10.101³ =
  11. 11.991³ =
  12. 12.106³ =
  13. 13.109³ =
  14. 14.97³ =
  15. 15.985³ =
  16. 16.97³ =
  17. 17.994³ =
  18. 18.989³ =
  19. 19.1004³ =
  20. 20.95³ =
  21. 21.104³ =
  22. 22.1001³ =
  23. 23.1010³ =
  24. 24.92³ =
  25. 25.990³ =
  26. 26.106³ =
  27. 27.1010³ =
  28. 28.94³ =
  29. 29.107³ =
  30. 30.987³ =
  31. 31.1013³ =
  32. 32.1011³ =
  33. 33.107³ =
  34. 34.101³ =
  35. 35.96³ =
  36. 36.103³ =
  37. 37.99³ =
  38. 38.1015³ =
  39. 39.95³ =
  40. 40.94³ =

Answer key

  1. 1061208
  2. 804357
  3. 1157625
  4. 1058089859
  5. 941192
  6. 967361669
  7. 778688
  8. 753571
  9. 1030301000
  10. 1030301
  11. 973242271
  12. 1191016
  13. 1295029
  14. 912673
  15. 955671625
  16. 912673
  17. 982107784
  18. 967361669
  19. 1012048064
  20. 857375
  21. 1124864
  22. 1003003001
  23. 1030301000
  24. 778688
  25. 970299000
  26. 1191016
  27. 1030301000
  28. 830584
  29. 1225043
  30. 961504803
  31. 1039509197
  32. 1033364331
  33. 1225043
  34. 1030301
  35. 884736
  36. 1092727
  37. 970299
  38. 1045678375
  39. 857375
  40. 830584

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