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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 856 · 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. 1.1009³ =
  2. 2.93³ =
  3. 3.1012³ =
  4. 4.92³ =
  5. 5.984³ =
  6. 6.989³ =
  7. 7.1008³ =
  8. 8.92³ =
  9. 9.104³ =
  10. 10.102³ =
  11. 11.989³ =
  12. 12.1019³ =
  13. 13.1004³ =
  14. 14.990³ =
  15. 15.1019³ =
  16. 16.91³ =
  17. 17.105³ =
  18. 18.990³ =
  19. 19.983³ =
  20. 20.982³ =
  21. 21.980³ =
  22. 22.104³ =
  23. 23.103³ =
  24. 24.99³ =
  25. 25.95³ =
  26. 26.1017³ =
  27. 27.1019³ =
  28. 28.1014³ =
  29. 29.986³ =
  30. 30.92³ =
  31. 31.1012³ =
  32. 32.106³ =
  33. 33.92³ =
  34. 34.1012³ =
  35. 35.94³ =
  36. 36.91³ =
  37. 37.108³ =
  38. 38.1007³ =
  39. 39.94³ =
  40. 40.108³ =

Answer key

  1. 1027243729
  2. 804357
  3. 1036433728
  4. 778688
  5. 952763904
  6. 967361669
  7. 1024192512
  8. 778688
  9. 1124864
  10. 1061208
  11. 967361669
  12. 1058089859
  13. 1012048064
  14. 970299000
  15. 1058089859
  16. 753571
  17. 1157625
  18. 970299000
  19. 949862087
  20. 946966168
  21. 941192000
  22. 1124864
  23. 1092727
  24. 970299
  25. 857375
  26. 1051871913
  27. 1058089859
  28. 1042590744
  29. 958585256
  30. 778688
  31. 1036433728
  32. 1191016
  33. 778688
  34. 1036433728
  35. 830584
  36. 753571
  37. 1259712
  38. 1021147343
  39. 830584
  40. 1259712

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