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 Always end with 1089

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maths coordinator

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Posts : 113
Join date : 2010-01-28
Location : Deplomatic International School

PostSubject: Always end with 1089   Sat Feb 13, 2010 8:11 am

Always End With 1089

Add two number together and always end with 1089. scratch

Here is How:

-Pick a three digit number. The three numbers used must be different.
i.e. 123


-Reverse that number. 123 becomes 321


-Take the smallest three digit number from the largest.
321 - 123 = 198


-Take the answer and reverse that number.
198 becomes 891


-Add that number to the answer of the subtraction.
891 + 198 = 1089 cheers

The answer will be 1089 Exclamation Exclamation



A Little Footnote confused
But I ended with 198 not 1089.
This happens if you pick a number like 546. Try to pick consecutive numbers like 123, 345, 765 etc. Smile
If it does happen, it is not a problem.
Just repeat the stages again starting from 198.


Maths coordinator sunny
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