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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 891 · 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. 1.104³ =
  2. 2.108³ =
  3. 3.96³ =
  4. 4.99³ =
  5. 5.96³ =
  6. 6.1009³ =
  7. 7.101³ =
  8. 8.988³ =
  9. 9.105³ =
  10. 10.1002³ =
  11. 11.1010³ =
  12. 12.1020³ =
  13. 13.97³ =
  14. 14.103³ =
  15. 15.102³ =
  16. 16.96³ =
  17. 17.985³ =
  18. 18.1001³ =
  19. 19.95³ =
  20. 20.102³ =
  21. 21.91³ =
  22. 22.996³ =
  23. 23.1014³ =
  24. 24.995³ =
  25. 25.987³ =
  26. 26.102³ =
  27. 27.91³ =
  28. 28.91³ =
  29. 29.104³ =
  30. 30.998³ =
  31. 31.98³ =
  32. 32.990³ =
  33. 33.99³ =
  34. 34.101³ =
  35. 35.95³ =
  36. 36.1015³ =
  37. 37.107³ =
  38. 38.982³ =
  39. 39.103³ =
  40. 40.1016³ =

Answer key

  1. 1124864
  2. 1259712
  3. 884736
  4. 970299
  5. 884736
  6. 1027243729
  7. 1030301
  8. 964430272
  9. 1157625
  10. 1006012008
  11. 1030301000
  12. 1061208000
  13. 912673
  14. 1092727
  15. 1061208
  16. 884736
  17. 955671625
  18. 1003003001
  19. 857375
  20. 1061208
  21. 753571
  22. 988047936
  23. 1042590744
  24. 985074875
  25. 961504803
  26. 1061208
  27. 753571
  28. 753571
  29. 1124864
  30. 994011992
  31. 941192
  32. 970299000
  33. 970299
  34. 1030301
  35. 857375
  36. 1045678375
  37. 1225043
  38. 946966168
  39. 1092727
  40. 1048772096

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