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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 55 · 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. 1.997³ =
  2. 2.103³ =
  3. 3.94³ =
  4. 4.1015³ =
  5. 5.107³ =
  6. 6.989³ =
  7. 7.994³ =
  8. 8.990³ =
  9. 9.93³ =
  10. 10.985³ =
  11. 11.91³ =
  12. 12.97³ =
  13. 13.1005³ =
  14. 14.107³ =
  15. 15.988³ =
  16. 16.104³ =
  17. 17.103³ =
  18. 18.986³ =
  19. 19.989³ =
  20. 20.997³ =
  21. 21.1019³ =
  22. 22.990³ =
  23. 23.94³ =
  24. 24.95³ =
  25. 25.1005³ =
  26. 26.1006³ =
  27. 27.92³ =
  28. 28.1008³ =
  29. 29.990³ =
  30. 30.104³ =
  31. 31.1005³ =
  32. 32.102³ =
  33. 33.987³ =
  34. 34.97³ =
  35. 35.1004³ =
  36. 36.91³ =
  37. 37.1004³ =
  38. 38.985³ =
  39. 39.92³ =
  40. 40.98³ =

Answer key

  1. 991026973
  2. 1092727
  3. 830584
  4. 1045678375
  5. 1225043
  6. 967361669
  7. 982107784
  8. 970299000
  9. 804357
  10. 955671625
  11. 753571
  12. 912673
  13. 1015075125
  14. 1225043
  15. 964430272
  16. 1124864
  17. 1092727
  18. 958585256
  19. 967361669
  20. 991026973
  21. 1058089859
  22. 970299000
  23. 830584
  24. 857375
  25. 1015075125
  26. 1018108216
  27. 778688
  28. 1024192512
  29. 970299000
  30. 1124864
  31. 1015075125
  32. 1061208
  33. 961504803
  34. 912673
  35. 1012048064
  36. 753571
  37. 1012048064
  38. 955671625
  39. 778688
  40. 941192

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