Pre-Algebra Review

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What is the order of operations in mathematics?

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The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS is often used: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What is a variable in algebra?

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How do you calculate the perimeter of a rectangle?

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The perimeter of a rectangle is calculated using the formula: Perimeter = 2(length + width).

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What is the difference between an expression and an equation?

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An expression is a combination of numbers, variables, and operations without an equality sign. An equation is a statement that two expressions are equal, indicated by an equality sign.

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What does it mean for two expressions to be equivalent?

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Two expressions are equivalent if they have the same value for all values of the variables involved.

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What is the distributive property?

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What is a coefficient in algebra?

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