The math topic focuses on the practice of algebraic function variable substitution. Specifically, it emphasizes the substitution of variables in the form of simple terms within algebraic expressions. The exercises involve determining the values of algebraic expressions given specific values for variables, which are denoted as r, m, y, p, x, b, and n. This topic lies within a broader unit studying the practice of negative integers.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.