Multiplication by 11 through a special method
By ittech, 2nd Jan 2012 | Follow this author
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Posted in WikinutBusinessAccounting & Finance
If in the process of addition, you get a two digit number, set down only the right digit and carry the left digit.
The process
Qs. 134 * 11=?
Write down the answer one figure at a time, from right to left as in any multiplication. Prefix a zero to the multiplicand so that it reads 0134.
0134
To the right digit 4 add its right neighbor (right neighbor is the right) , there is no neighbor in the right so add 0.
4+0 = 4
To the right digit 4 add its right neighbor 3 so
4+3=7
To the next digit 1 right neighbor is 3 So,
3+1=4
To 0 the right neighbor is 1 so,
0+1=1
So, therefore, 134*11= 1474
0134*11=
4
7
4
1
= 1474
Another example
3456 into 11=
3 80 16
If in the process of addition, you get a two digit number, set down only the right digit and carry the left digit.
You can check it through yours conventional method.
Comments
3rd Jan 2012 (#)
Very interesting.
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3rd Jan 2012 (#)
You're genius dude. Interesting share. I also love numbers.
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3rd Jan 2012 (#)
My spirit for numbers is willing but my mind is weak...lol
Thanks, ittech.:)
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4th Jan 2012 (#)
that's why there is "tech" in ittech
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5th Jan 2012 (#)
''WE ALL ARE JUST PASSERS BY
AS TIME PASSES US ALL BY''
HAPPY NEW YEAR
THIS YEAR 2012
ENDS THE MAYAN CALENDAR
AND THE JULIAN CALENDER ALONE.
SHALL SURVIVE
AS IT IS SCIENTIFIC REALITY
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At my last resting place,
To place a flower
Upon my face
And
Feel enamored,
All friends my steps,
Do still trace
And
Continue to read on
Still with grace
Am I the Shakespeare?
Who, once was!!!
BUT strangulated
BY THIS WIKINUT SITE UNFAIR .INJUSTICE...
NOT TO ME
BUT TO MY READERS
PLEASE NOTE… let not others... try to over shadow your works...
By posting lengthy ones...ON YOURS...
This is a rat, eat rat, world today...
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5th Jan 2012 (#)
Good at math!
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5th Jan 2012 (#)
Hmmm! I will look over this later on, but I am not disputing what you say, ittech!
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10th Jan 2012 (#)
Math is not my thing at all. Nice read. Thank you for sharing.:)
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15th Jan 2012 (#)
GR8 presentation
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