Multiply by 11 | 16 Jul 2009

shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
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.
hotnspicy's Avatar
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135802367913580236791358023679132
hotnspicy's Avatar
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135 80246 79135 80246 79135 80246 79132
!Newbie!'s Avatar, Join Date: Apr 2009
Ambitious contributor
135802467913580246791358024679132
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
And any update on how did you do that.
naimish's Avatar
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@ hotnspicy,

It seems first you counted yourself the whole figure

Then you make it out from this website

Anyways, Congrs
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
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
!Newbie!'s Avatar, Join Date: Apr 2009
Ambitious contributor
I used the good old traditional method though that took time I guess
Congrats hotnspicy
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
Quote:
Originally Posted by !Newbie! View Post
I used the good old traditional method though that took time I guess
Congrats hotnspicy
Yes its traditional one only but to speed up that we have this technique