Hum Tum Board

IT Education => Articles,Tips & Tricks.IT News => : Leon October 31, 2009, 12:20 PM

: Beauty of Math
: Leon October 31, 2009, 12:20 PM

1 x 8 + 1 = 9
 12 x 8 + 2 = 98
 123 x 8 + 3 = 987
 1234 x 8 + 4 = 9876
 12345 x 8 + 5 = 98765
 123456 x 8 + 6 = 987654
 1234567 x 8 + 7 = 9876543
 12345678 x 8 + 8 = 98765432
 123456789 x 8 + 9 = 987654321
 
 1 x 9 + 2 = 11
 12 x 9 + 3 = 111
 123 x 9 + 4 = 1111
 1234 x 9 + 5 = 11111
 12345 x 9 + 6 = 111111
 123456 x 9 + 7 = 1111111
 1234567 x 9 + 8 = 11111111
 12345678 x 9 + 9 = 111111111
 123456789 x 9 +10= 1111111111
 
 9 x 9 + 7 = 88
 98 x 9 + 6 = 888
 987 x 9 + 5 = 8888
 9876 x 9 + 4 = 88888
 98765 x 9 + 3 = 888888
 987654 x 9 + 2 = 8888888
 9876543 x 9 + 1 = 88888888
 98765432 x 9 + 0 = 888888888
 

 
And finally, take a look at this symmetry:
 
 1 x 1 = 1
 11 x 11 = 121
 111 x 111 = 12321
 1111 x 1111 = 1234321
 11111 x 11111 = 123454321
 111111 x 111111 = 12345654321
 1111111 x 1111111 = 1234567654321
 11111111 x 11111111 = 123456787654321
 111111111 x 111111111=12345678987654321

: Re: Beauty of Math
: Super boy November 01, 2009, 08:49 PM

nice work thanks

: Re: Beauty of Math
: impressible4u November 16, 2009, 04:12 PM

very nice sharing good

: Re: Beauty of Math
: Samera November 27, 2009, 03:25 AM

good sharing

: Re: Beauty of Math
: Dreamboy November 30, 2009, 04:28 PM

very nice info..and sharing  shakehandnn

: Re: Beauty of Math
: Allahwala December 02, 2009, 06:45 PM

boht achi sharing ki ap ne boht shukria

: Re: Beauty of Math
: King January 01, 2010, 06:08 AM

VERY NICE SHARING

: Re: Beauty of Math
: bakr124 January 09, 2010, 11:16 AM

 calping thumbsss goodjob nice