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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 939 · 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. 1.104³ =
  2. 2.91³ =
  3. 3.987³ =
  4. 4.1020³ =
  5. 5.94³ =
  6. 6.999³ =
  7. 7.109³ =
  8. 8.987³ =
  9. 9.985³ =
  10. 10.109³ =
  11. 11.97³ =
  12. 12.94³ =
  13. 13.1017³ =
  14. 14.105³ =
  15. 15.109³ =
  16. 16.992³ =
  17. 17.1015³ =
  18. 18.1003³ =
  19. 19.106³ =
  20. 20.102³ =
  21. 21.983³ =
  22. 22.91³ =
  23. 23.96³ =
  24. 24.102³ =
  25. 25.96³ =
  26. 26.1006³ =
  27. 27.1001³ =
  28. 28.101³ =
  29. 29.109³ =
  30. 30.99³ =
  31. 31.997³ =
  32. 32.995³ =
  33. 33.93³ =
  34. 34.104³ =
  35. 35.996³ =
  36. 36.97³ =
  37. 37.999³ =
  38. 38.93³ =
  39. 39.97³ =
  40. 40.109³ =

Answer key

  1. 1124864
  2. 753571
  3. 961504803
  4. 1061208000
  5. 830584
  6. 997002999
  7. 1295029
  8. 961504803
  9. 955671625
  10. 1295029
  11. 912673
  12. 830584
  13. 1051871913
  14. 1157625
  15. 1295029
  16. 976191488
  17. 1045678375
  18. 1009027027
  19. 1191016
  20. 1061208
  21. 949862087
  22. 753571
  23. 884736
  24. 1061208
  25. 884736
  26. 1018108216
  27. 1003003001
  28. 1030301
  29. 1295029
  30. 970299
  31. 991026973
  32. 985074875
  33. 804357
  34. 1124864
  35. 988047936
  36. 912673
  37. 997002999
  38. 804357
  39. 912673
  40. 1295029

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