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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 683 · 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. 1.1015³ =
  2. 2.91³ =
  3. 3.97³ =
  4. 4.95³ =
  5. 5.1003³ =
  6. 6.98³ =
  7. 7.92³ =
  8. 8.91³ =
  9. 9.992³ =
  10. 10.989³ =
  11. 11.94³ =
  12. 12.990³ =
  13. 13.105³ =
  14. 14.102³ =
  15. 15.1010³ =
  16. 16.1017³ =
  17. 17.1002³ =
  18. 18.995³ =
  19. 19.104³ =
  20. 20.92³ =
  21. 21.1013³ =
  22. 22.107³ =
  23. 23.980³ =
  24. 24.102³ =
  25. 25.99³ =
  26. 26.997³ =
  27. 27.95³ =
  28. 28.99³ =
  29. 29.991³ =
  30. 30.106³ =
  31. 31.996³ =
  32. 32.91³ =
  33. 33.994³ =
  34. 34.93³ =
  35. 35.1001³ =
  36. 36.102³ =
  37. 37.95³ =
  38. 38.985³ =
  39. 39.1006³ =
  40. 40.107³ =

Answer key

  1. 1045678375
  2. 753571
  3. 912673
  4. 857375
  5. 1009027027
  6. 941192
  7. 778688
  8. 753571
  9. 976191488
  10. 967361669
  11. 830584
  12. 970299000
  13. 1157625
  14. 1061208
  15. 1030301000
  16. 1051871913
  17. 1006012008
  18. 985074875
  19. 1124864
  20. 778688
  21. 1039509197
  22. 1225043
  23. 941192000
  24. 1061208
  25. 970299
  26. 991026973
  27. 857375
  28. 970299
  29. 973242271
  30. 1191016
  31. 988047936
  32. 753571
  33. 982107784
  34. 804357
  35. 1003003001
  36. 1061208
  37. 857375
  38. 955671625
  39. 1018108216
  40. 1225043

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