**National STEM Education Standards**. An algebraic equation is an expression in which a letter represents an
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Worksheet/Answer keyOne & Two Step Equations

Worksheet/Answer keyOne & Two Step Equations

STEM.M. MATHEMATICS: National Council of Teachers of Mathematics

NCTM.1. Number and Operations

1.2. Understand meanings of operations and how they relate to one another.

1.2.3. Understand and use the inverse relationships of addition and subtraction, multiplication and division, and squaring and finding square roots to simplify computations and solve problems.

NCTM.2. Algebra

2.3. Use mathematical models to represent and understand quantitative relationships.

2.3.1. Model and solve contextualized problems using various representations, such as graphs, tables, and equations.