how are they doing this?

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how are they doing this?

click on this site
http://www.digicc.com/fido/
how does this work??
they get it right everytime!!!

2007-11-07 12:42:19 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

4 answers

The digits, including the circled one, add up to a multiple of 9. So whatever digits you type in, fido finds the number that will bring the total to 9,18, or 27.

2007-11-07 13:10:34 · answer #1 · answered by DWRead 7 · 0⤊ 0⤋

I think that what they are doing is the number that you circle, they subtract two of the numbers in the ones left and come up with the number.

2007-11-07 20:47:54 · answer #2 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋

no try the 3 digit # 111

2007-11-07 20:48:07 · answer #3 · answered by jh96 2 · 0⤊ 0⤋

didn't work for me..they were wrong

2007-11-07 20:47:42 · answer #4 · answered by Anonymous · 0⤊ 0⤋