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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 105 · 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. 1.1003³ =
  2. 2.1002³ =
  3. 3.92³ =
  4. 4.105³ =
  5. 5.105³ =
  6. 6.98³ =
  7. 7.1007³ =
  8. 8.96³ =
  9. 9.108³ =
  10. 10.103³ =
  11. 11.983³ =
  12. 12.101³ =
  13. 13.91³ =
  14. 14.104³ =
  15. 15.1005³ =
  16. 16.101³ =
  17. 17.99³ =
  18. 18.109³ =
  19. 19.997³ =
  20. 20.987³ =
  21. 21.987³ =
  22. 22.101³ =
  23. 23.109³ =
  24. 24.105³ =
  25. 25.99³ =
  26. 26.996³ =
  27. 27.989³ =
  28. 28.96³ =
  29. 29.980³ =
  30. 30.1016³ =
  31. 31.96³ =
  32. 32.97³ =
  33. 33.988³ =
  34. 34.1017³ =
  35. 35.1014³ =
  36. 36.1006³ =
  37. 37.95³ =
  38. 38.107³ =
  39. 39.1016³ =
  40. 40.1011³ =

Answer key

  1. 1009027027
  2. 1006012008
  3. 778688
  4. 1157625
  5. 1157625
  6. 941192
  7. 1021147343
  8. 884736
  9. 1259712
  10. 1092727
  11. 949862087
  12. 1030301
  13. 753571
  14. 1124864
  15. 1015075125
  16. 1030301
  17. 970299
  18. 1295029
  19. 991026973
  20. 961504803
  21. 961504803
  22. 1030301
  23. 1295029
  24. 1157625
  25. 970299
  26. 988047936
  27. 967361669
  28. 884736
  29. 941192000
  30. 1048772096
  31. 884736
  32. 912673
  33. 964430272
  34. 1051871913
  35. 1042590744
  36. 1018108216
  37. 857375
  38. 1225043
  39. 1048772096
  40. 1033364331

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