Evaluating algebraic expressions

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What is an algebraic expression?

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

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What does it mean to evaluate an algebraic expression?

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To evaluate an algebraic expression means to substitute the values of the variables into the expression and perform the operations to find a numerical result.

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14

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1

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125

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57

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150

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What is the order of operations used when evaluating expressions?

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The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often remembered by the acronym PEMDAS.

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13

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What is a variable in an algebraic expression?

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A variable is a symbol, often a letter, that represents an unknown value in an expression or equation.