I'm not a native speaker of English and I was reading a Calculus's book and I didn't know the correct way to read a statement about real numbers. This is the statement: "a + (b + c) = (a + b) + c" Is it "a plus the sum of b and c is equal to the sum of a and b plus c"? Or is it just "a plus b plus c is equal to a plus b plus c"? I just think the second one inappropriate because it doesn't tell the associative law at all. So, can anybody tell me the correct way? Thanks!