Evaluate Expressions

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What is the Order of Operations?

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The Order of Operations is a set of rules that determines the sequence in which calculations are performed in a mathematical expression. The order 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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Evaluate the expression: 3³ + 2 ⋅ 4 - 2.

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Evaluate the expression: 5mn when m = 4 and n = ½.

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Evaluate the expression: 48 - (4² - 2) + 6.

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting any variables with their given values and performing the necessary operations.

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What is a variable in mathematics?

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A variable is a symbol, often a letter, that represents a number that can change or vary. For example, in the expression n = 10, 'n' is a variable.

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What is a mathematical expression?

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A mathematical expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

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