SOLUTION: As a parent I am confused with what is what. Example 3+(2+1)=(3+2)+1 I thought it was associative under addition am I correct? What pre algebra sites will give a detailed example(

Question 178570: As a parent I am confused with what is what.
Example 3+(2+1)=(3+2)+1 I thought it was associative under addition am I correct? What pre algebra sites will give a detailed example(s)
The school my daughter is in has no text book
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
there are many ...type in addition properties or any mathematical properties you looking for:
:
http://www.sparknotes.com/math/prealgebra/operations/section2.rhtml
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