1997 PMWC Problems/Problem I8

Revision as of 18:46, 8 October 2007 by 1=2 (talk | contribs) (New page: ==Problem== <math>997-996-995+994+993-992+991-990-989+988+989-986+\cdots+7-6-5+4+3-2+1=?</math> ==Solution== {{solution}})
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Problem

$997-996-995+994+993-992+991-990-989+988+989-986+\cdots+7-6-5+4+3-2+1=?$

Solution

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