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Multiply by 11 | 16 Jul 2009

Discussion in '$1 Daily Competition' started by shabbir, Jul 16, 2009.

  1. shabbir

    shabbir Administrator Staff Member

    Result when we multiply 12345678901234567890123456789012 by 11.

    Note : The answer should not be in the exponential form as we get in Windows Scientific calculator but it should be the complete figure upto the last digit.
     
  2. hotnspicy

    hotnspicy New Member

    135802367913580236791358023679132
     
  3. hotnspicy

    hotnspicy New Member

    135 80246 79135 80246 79135 80246 79132
     
  4. !Newbie!

    !Newbie! New Member

    135802467913580246791358024679132
     
  5. shabbir

    shabbir Administrator Staff Member

    And any update on how did you do that. :D
     
  6. hotnspicy

    hotnspicy New Member

  7. naimish

    naimish New Member

    @ hotnspicy,

    It seems first you counted yourself the whole figure :lol:

    Then you make it out from this website ;)

    Anyways, Congrs :)
     
  8. shabbir

    shabbir Administrator Staff Member

    Ohh My God but I would tell you something very simple method which would be good for learning as well.

    For multiplication of 11 use the following technique

    123 x 11
    Consider the number as 01230
    And answer would be
    Code:
    0+1 | 1+2 | 2+3 | 3+0
     1  |  3  |  5  | 3
    
    How we get this

    123
    x11
    ===
    0123
    123x
    ===
    1353

    So applying same on the number

    012345678901234567890123456789012
    12345678901234567890123456789012x
    ==========================
    135802467913580246791358024679132

    Congrats hotnspicy
     
  9. !Newbie!

    !Newbie! New Member

    I used the good old traditional method though:) that took time I guess
    Congrats hotnspicy
     
  10. shabbir

    shabbir Administrator Staff Member

    Yes its traditional one only but to speed up that we have this technique :)
     

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