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These files are maintained strictly for historical reference, research, and recordkeeping purposes,
and the content has not been altered or updated since archiving.
Content on this site may not meet current digital accessibility standards.
If you require an alternative, accessible format of any information found on this site,
please contact Bruce Jones, bjones@ucsd.edu to request an accommodation.
My non-math vision. If I multiply a positive number by 0, I still have 0. If I multiply a positive number by less than 0, a negative number, I will still have less than 0... only it will be a more specific amount of less than zero. Ergo multiply a positive number by a negative number and it will have to be a negative result. ~em P.S. I teaching reading. -----Original Message----- From: xmca-bounces@weber.ucsd.edu [mailto:xmca-bounces@weber.ucsd.edu] On Behalf Of Mike Cole Sent: Monday, April 27, 2009 3:48 PM To: eXtended Mind, Culture, Activity Subject: [xmca] a minus times a plus Since we have some mathematically literate folks on xmca, could someone please post an explanation of why multiplying a negative number by a positive numbers yields a negative number? What I would really love is an explanation that is representable in a manner understandable to old college professors and young high school students alike. mike _______________________________________________ xmca mailing list xmca@weber.ucsd.edu http://dss.ucsd.edu/mailman/listinfo/xmca _______________________________________________ xmca mailing list xmca@weber.ucsd.edu http://dss.ucsd.edu/mailman/listinfo/xmca