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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 981 · 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. 2.106³ =
  3. 3.1014³ =
  4. 4.1007³ =
  5. 5.95³ =
  6. 6.1019³ =
  7. 7.105³ =
  8. 8.105³ =
  9. 9.1002³ =
  10. 10.91³ =
  11. 11.92³ =
  12. 12.1020³ =
  13. 13.104³ =
  14. 14.1010³ =
  15. 15.996³ =
  16. 16.99³ =
  17. 17.1017³ =
  18. 18.97³ =
  19. 19.96³ =
  20. 20.91³ =
  21. 21.992³ =
  22. 22.1017³ =
  23. 23.1004³ =
  24. 24.94³ =
  25. 25.1017³ =
  26. 26.104³ =
  27. 27.107³ =
  28. 28.988³ =
  29. 29.1003³ =
  30. 30.987³ =
  31. 31.980³ =
  32. 32.984³ =
  33. 33.96³ =
  34. 34.93³ =
  35. 35.983³ =
  36. 36.984³ =
  37. 37.99³ =
  38. 38.982³ =
  39. 39.92³ =
  40. 40.97³ =

Answer key

  1. 970299
  2. 1191016
  3. 1042590744
  4. 1021147343
  5. 857375
  6. 1058089859
  7. 1157625
  8. 1157625
  9. 1006012008
  10. 753571
  11. 778688
  12. 1061208000
  13. 1124864
  14. 1030301000
  15. 988047936
  16. 970299
  17. 1051871913
  18. 912673
  19. 884736
  20. 753571
  21. 976191488
  22. 1051871913
  23. 1012048064
  24. 830584
  25. 1051871913
  26. 1124864
  27. 1225043
  28. 964430272
  29. 1009027027
  30. 961504803
  31. 941192000
  32. 952763904
  33. 884736
  34. 804357
  35. 949862087
  36. 952763904
  37. 970299
  38. 946966168
  39. 778688
  40. 912673

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