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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 990 · 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. 1.91³ =
  2. 2.102³ =
  3. 3.92³ =
  4. 4.1018³ =
  5. 5.987³ =
  6. 6.91³ =
  7. 7.1015³ =
  8. 8.980³ =
  9. 9.987³ =
  10. 10.103³ =
  11. 11.106³ =
  12. 12.104³ =
  13. 13.994³ =
  14. 14.103³ =
  15. 15.984³ =
  16. 16.103³ =
  17. 17.95³ =
  18. 18.995³ =
  19. 19.101³ =
  20. 20.101³ =
  21. 21.1004³ =
  22. 22.1014³ =
  23. 23.1017³ =
  24. 24.1016³ =
  25. 25.107³ =
  26. 26.1002³ =
  27. 27.103³ =
  28. 28.983³ =
  29. 29.987³ =
  30. 30.102³ =
  31. 31.106³ =
  32. 32.92³ =
  33. 33.1001³ =
  34. 34.994³ =
  35. 35.1012³ =
  36. 36.108³ =
  37. 37.91³ =
  38. 38.101³ =
  39. 39.997³ =
  40. 40.1002³ =

Answer key

  1. 753571
  2. 1061208
  3. 778688
  4. 1054977832
  5. 961504803
  6. 753571
  7. 1045678375
  8. 941192000
  9. 961504803
  10. 1092727
  11. 1191016
  12. 1124864
  13. 982107784
  14. 1092727
  15. 952763904
  16. 1092727
  17. 857375
  18. 985074875
  19. 1030301
  20. 1030301
  21. 1012048064
  22. 1042590744
  23. 1051871913
  24. 1048772096
  25. 1225043
  26. 1006012008
  27. 1092727
  28. 949862087
  29. 961504803
  30. 1061208
  31. 1191016
  32. 778688
  33. 1003003001
  34. 982107784
  35. 1036433728
  36. 1259712
  37. 753571
  38. 1030301
  39. 991026973
  40. 1006012008

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