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Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: Early math
Topic ID: 10
Message ID: 6
#6, RE: Integers
Posted by Dean on Oct-04-01 at 11:38 AM
In response to message #0
He is thinking that subraction and addition are the same thing.

He thinks that cos 14+27 and 27+14 is the same answer so
27-14 and 14-27 is also the same.