Maryland Standards
MD.1.0. Knowledge of Algebra, Patterns, and Functions: Students will algebraically represent, model, analyze, or solve mathematical or real-world problems involving patterns or functional relationships.
1.B.2. Expressions, Equations, and Inequalities: Identify, write, solve, and apply equations and inequalities.
1.B.2.b. Determine the unknown in a linear equation (Assessment limit: Use one or two operations (+, -, x) and the unknown only once with whole numbers (0 - 500), fractions with denominators as factors of 100 (0 - 50), or decimals with no more than three decimal places (0 - 100)).
MD.7.0. Processes of Mathematics: Students demonstrate the processes of mathematics by making connections and applying reasoning to solve problems and to communicate their findings.
7.A.1. Problem Solving: Apply a variety of concepts, processes, and skills to solve problems
7.A.1.e. Select a strategy, i.e., draw a picture, guess and check, finding a pattern, writing an equation