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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 398 · 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. 1.105³ =
  2. 2.103³ =
  3. 3.91³ =
  4. 4.1002³ =
  5. 5.98³ =
  6. 6.101³ =
  7. 7.98³ =
  8. 8.98³ =
  9. 9.99³ =
  10. 10.99³ =
  11. 11.91³ =
  12. 12.96³ =
  13. 13.997³ =
  14. 14.991³ =
  15. 15.983³ =
  16. 16.1001³ =
  17. 17.1001³ =
  18. 18.107³ =
  19. 19.98³ =
  20. 20.102³ =
  21. 21.995³ =
  22. 22.102³ =
  23. 23.1019³ =
  24. 24.95³ =
  25. 25.97³ =
  26. 26.988³ =
  27. 27.109³ =
  28. 28.97³ =
  29. 29.99³ =
  30. 30.101³ =
  31. 31.1013³ =
  32. 32.95³ =
  33. 33.987³ =
  34. 34.1015³ =
  35. 35.1005³ =
  36. 36.93³ =
  37. 37.996³ =
  38. 38.981³ =
  39. 39.986³ =
  40. 40.987³ =

Answer key

  1. 1157625
  2. 1092727
  3. 753571
  4. 1006012008
  5. 941192
  6. 1030301
  7. 941192
  8. 941192
  9. 970299
  10. 970299
  11. 753571
  12. 884736
  13. 991026973
  14. 973242271
  15. 949862087
  16. 1003003001
  17. 1003003001
  18. 1225043
  19. 941192
  20. 1061208
  21. 985074875
  22. 1061208
  23. 1058089859
  24. 857375
  25. 912673
  26. 964430272
  27. 1295029
  28. 912673
  29. 970299
  30. 1030301
  31. 1039509197
  32. 857375
  33. 961504803
  34. 1045678375
  35. 1015075125
  36. 804357
  37. 988047936
  38. 944076141
  39. 958585256
  40. 961504803

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