Teacher2Teacher 
Q&A #4120 
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From: Prakash Nair <prakash_nair@teacher.com> To: Teacher2Teacher Public Discussion Date: 2010060207:26:31 Subject: Re: mathematics minus sign means opposite, ex:  3 means opposite of 3, so  (  5) would mean opposite of  5, which is 5. hence  times  is plus.
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