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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 104 · 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. 1.999³ =
  2. 2.993³ =
  3. 3.108³ =
  4. 4.1011³ =
  5. 5.998³ =
  6. 6.1018³ =
  7. 7.996³ =
  8. 8.990³ =
  9. 9.99³ =
  10. 10.96³ =
  11. 11.108³ =
  12. 12.1005³ =
  13. 13.93³ =
  14. 14.107³ =
  15. 15.988³ =
  16. 16.97³ =
  17. 17.108³ =
  18. 18.1012³ =
  19. 19.985³ =
  20. 20.992³ =
  21. 21.1018³ =
  22. 22.109³ =
  23. 23.994³ =
  24. 24.97³ =
  25. 25.94³ =
  26. 26.107³ =
  27. 27.99³ =
  28. 28.1015³ =
  29. 29.1008³ =
  30. 30.105³ =
  31. 31.95³ =
  32. 32.1020³ =
  33. 33.92³ =
  34. 34.999³ =
  35. 35.1001³ =
  36. 36.98³ =
  37. 37.101³ =
  38. 38.980³ =
  39. 39.101³ =
  40. 40.94³ =

Answer key

  1. 997002999
  2. 979146657
  3. 1259712
  4. 1033364331
  5. 994011992
  6. 1054977832
  7. 988047936
  8. 970299000
  9. 970299
  10. 884736
  11. 1259712
  12. 1015075125
  13. 804357
  14. 1225043
  15. 964430272
  16. 912673
  17. 1259712
  18. 1036433728
  19. 955671625
  20. 976191488
  21. 1054977832
  22. 1295029
  23. 982107784
  24. 912673
  25. 830584
  26. 1225043
  27. 970299
  28. 1045678375
  29. 1024192512
  30. 1157625
  31. 857375
  32. 1061208000
  33. 778688
  34. 997002999
  35. 1003003001
  36. 941192
  37. 1030301
  38. 941192000
  39. 1030301
  40. 830584

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