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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 731 · 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. 1.93³ =
  2. 2.102³ =
  3. 3.987³ =
  4. 4.92³ =
  5. 5.99³ =
  6. 6.98³ =
  7. 7.1009³ =
  8. 8.108³ =
  9. 9.1014³ =
  10. 10.1016³ =
  11. 11.1015³ =
  12. 12.99³ =
  13. 13.991³ =
  14. 14.1009³ =
  15. 15.997³ =
  16. 16.1011³ =
  17. 17.91³ =
  18. 18.995³ =
  19. 19.98³ =
  20. 20.102³ =
  21. 21.106³ =
  22. 22.107³ =
  23. 23.1006³ =
  24. 24.997³ =
  25. 25.106³ =
  26. 26.97³ =
  27. 27.104³ =
  28. 28.992³ =
  29. 29.105³ =
  30. 30.983³ =
  31. 31.995³ =
  32. 32.992³ =
  33. 33.1005³ =
  34. 34.986³ =
  35. 35.103³ =
  36. 36.104³ =
  37. 37.1010³ =
  38. 38.1019³ =
  39. 39.1004³ =
  40. 40.983³ =

Answer key

  1. 804357
  2. 1061208
  3. 961504803
  4. 778688
  5. 970299
  6. 941192
  7. 1027243729
  8. 1259712
  9. 1042590744
  10. 1048772096
  11. 1045678375
  12. 970299
  13. 973242271
  14. 1027243729
  15. 991026973
  16. 1033364331
  17. 753571
  18. 985074875
  19. 941192
  20. 1061208
  21. 1191016
  22. 1225043
  23. 1018108216
  24. 991026973
  25. 1191016
  26. 912673
  27. 1124864
  28. 976191488
  29. 1157625
  30. 949862087
  31. 985074875
  32. 976191488
  33. 1015075125
  34. 958585256
  35. 1092727
  36. 1124864
  37. 1030301000
  38. 1058089859
  39. 1012048064
  40. 949862087

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