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Amazingweirdy - Maths (yikes!!) This mystery is quite cool

 
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natalie
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Joined: 24 Oct 2004
Posts: 37
Location: Nearwater

PostPosted: Fri Oct 14, 2005 1:56 pm    Post subject: Amazingweirdy - Maths (yikes!!) This mystery is quite cool Reply with quote

Take any four figures:
e.g. 7694
reverse their order

and subtract them:
7694 - 4967 = 2727
Now add all the digits together and the answer will always come to 9.
2+7+2+7=18
1+8=9
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Melanie



Joined: 25 Oct 2004
Posts: 26
Location: Torbay

PostPosted: Wed Nov 02, 2005 2:44 pm    Post subject: Reply with quote

ah, very neat.....
we just took the same principle for 3 figures and for 5 figures, even if it includes a zero.....
..... and it comes to 9 as well!



spooky

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