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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 999 · 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. 1.105³ =
  2. 2.1010³ =
  3. 3.1005³ =
  4. 4.109³ =
  5. 5.981³ =
  6. 6.106³ =
  7. 7.91³ =
  8. 8.980³ =
  9. 9.98³ =
  10. 10.1006³ =
  11. 11.999³ =
  12. 12.106³ =
  13. 13.94³ =
  14. 14.980³ =
  15. 15.98³ =
  16. 16.1006³ =
  17. 17.982³ =
  18. 18.989³ =
  19. 19.985³ =
  20. 20.105³ =
  21. 21.105³ =
  22. 22.95³ =
  23. 23.981³ =
  24. 24.94³ =
  25. 25.998³ =
  26. 26.92³ =
  27. 27.99³ =
  28. 28.99³ =
  29. 29.981³ =
  30. 30.103³ =
  31. 31.999³ =
  32. 32.995³ =
  33. 33.93³ =
  34. 34.997³ =
  35. 35.108³ =
  36. 36.1017³ =
  37. 37.96³ =
  38. 38.994³ =
  39. 39.1004³ =
  40. 40.998³ =

Answer key

  1. 1157625
  2. 1030301000
  3. 1015075125
  4. 1295029
  5. 944076141
  6. 1191016
  7. 753571
  8. 941192000
  9. 941192
  10. 1018108216
  11. 997002999
  12. 1191016
  13. 830584
  14. 941192000
  15. 941192
  16. 1018108216
  17. 946966168
  18. 967361669
  19. 955671625
  20. 1157625
  21. 1157625
  22. 857375
  23. 944076141
  24. 830584
  25. 994011992
  26. 778688
  27. 970299
  28. 970299
  29. 944076141
  30. 1092727
  31. 997002999
  32. 985074875
  33. 804357
  34. 991026973
  35. 1259712
  36. 1051871913
  37. 884736
  38. 982107784
  39. 1012048064
  40. 994011992

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