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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 365 · 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. 1.97³ =
  2. 2.999³ =
  3. 3.1003³ =
  4. 4.102³ =
  5. 5.980³ =
  6. 6.1009³ =
  7. 7.97³ =
  8. 8.95³ =
  9. 9.105³ =
  10. 10.1012³ =
  11. 11.984³ =
  12. 12.1018³ =
  13. 13.104³ =
  14. 14.995³ =
  15. 15.998³ =
  16. 16.999³ =
  17. 17.106³ =
  18. 18.108³ =
  19. 19.93³ =
  20. 20.995³ =
  21. 21.1005³ =
  22. 22.103³ =
  23. 23.1018³ =
  24. 24.96³ =
  25. 25.99³ =
  26. 26.996³ =
  27. 27.98³ =
  28. 28.1002³ =
  29. 29.1011³ =
  30. 30.982³ =
  31. 31.988³ =
  32. 32.108³ =
  33. 33.106³ =
  34. 34.96³ =
  35. 35.91³ =
  36. 36.99³ =
  37. 37.101³ =
  38. 38.1005³ =
  39. 39.983³ =
  40. 40.107³ =

Answer key

  1. 912673
  2. 997002999
  3. 1009027027
  4. 1061208
  5. 941192000
  6. 1027243729
  7. 912673
  8. 857375
  9. 1157625
  10. 1036433728
  11. 952763904
  12. 1054977832
  13. 1124864
  14. 985074875
  15. 994011992
  16. 997002999
  17. 1191016
  18. 1259712
  19. 804357
  20. 985074875
  21. 1015075125
  22. 1092727
  23. 1054977832
  24. 884736
  25. 970299
  26. 988047936
  27. 941192
  28. 1006012008
  29. 1033364331
  30. 946966168
  31. 964430272
  32. 1259712
  33. 1191016
  34. 884736
  35. 753571
  36. 970299
  37. 1030301
  38. 1015075125
  39. 949862087
  40. 1225043

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