AM I MISSING SOMETHING OR IS THERE A REASON WHY THE FOLLOWING WORKS

I LOOKEDAT THE NUMBERS ON A DIGITAL CLOCK AND FOUND THIS..ie...if i take 20.58 as the time and do this 20+58=78..7+8=15..1+5=6...if i just added the numbers as follows 2+0+5+8=15..1+5=6...this seems to work with whatever numbers i pick,although it started with numbers on a digital clock and possibly a bit of boredom.why does this work or what am i missing

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ashyj12
@puglover3000 me too lol
on June 21, 2012
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thefireredfox
It works because they are the same numbers. 20+58=78. 7+8 is 2+0+5=7+8. It's just that when you do 20+58 you are taking more time than when you do 2+0+5+8. Do you understand? In a shorter way, they are the same numbers just in a dfferent order. If you take out the 8 in 2+0+5+8 you get 2+0+5 which is 7. Then you add 7 and 8 which is what you end up with in 20+58=78 7+8. Becuase you are adding you will get the same answer.
on June 21, 2012
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puglover3000
I am confused
on June 21, 2012
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