Math: what does associative mean?

Tutoring math, you mention definitions. The tutor defines associative.

associative(adj):

independent of grouping: for instance, (a+b)+c = a+(b+c), meaning that addition is associative. Multiplication is associative as well.

Source:

Gallian, Joseph A. Contemporary Abstract Algebra. Toronto: D.C. Heath and Company, 1994.

Oracle Tutoring by Jack and Diane, Campbell River, BC.

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