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Variable Substitution
Evaluate expressions with variables. You may need pencil and paper.
This topic aligns to the following state standards
Grade 4: AF 1.1 Use letters, boxes, or other symbols to stand for any number in simple expressions or equations (e.g., demonstrate an understanding and the use of the concept of a variable).
Grade 5: AF 1.2 Use a letter to represent an unknown number; write and evaluate simple algebraic expressions in one variable by substitution.
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