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Shashank_

Can any tell the cube root of 456533 in just one second orally without calculating or solving ?

  • one year ago
  • one year ago

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  1. Phydeaux
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    77.

    • one year ago
  2. Shashank_
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    right bt How did u solve using calculator or by solving ..or orally ?

    • one year ago
  3. Phydeaux
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    What kind of calculator do you have?

    • one year ago
  4. Shashank_
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    bu using mind We can solve any cube root in just one second

    • one year ago
  5. Phydeaux
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    I'm not sure what you're asking. Do you want to know how to do it with or without a calculator?

    • one year ago
  6. Mathmuse
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    please then cube, 300653

    • one year ago
  7. Shashank_
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    67

    • one year ago
  8. Mathmuse
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    the cube of 67 is 300763

    • one year ago
  9. Shashank_
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    No there is condition Cuberoot must be positive integer

    • one year ago
  10. Mathmuse
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    ohh, well isn't that convenient

    • one year ago
  11. Mathmuse
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    the unit value of an integer will map to a definite unit value when cubed: 0-0 1-1 2-8 3-7 4-4 5-5 6-6 7-3 8-2 9-9 so you know half the number off the hop. which ever 10's cube it lay between is your answer

    • one year ago
  12. Mathmuse
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    which is why you guessed wrong when my cube ended in 3

    • one year ago
  13. Shashank_
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    No the main condition is ..I can tell u cube root of that number which is obtained by multiplying three times a number that lie between 1 to 100 and the number which u r multiplying must be positive Integer !

    • one year ago
  14. Mathmuse
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    you should list those conditions before hand. either way, neat trick

    • one year ago
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