Order of operations with brackets

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

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What does it mean to use brackets in an equation?

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Brackets (or parentheses) indicate that the operations inside them should be performed first before any other operations outside.

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3

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7

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5

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Divide 16 by 2 before subtracting from 50.

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11 (because multiplication is done before addition).

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You solve the expression inside the parentheses first, which is 8.

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What does the term 'exponents' refer to in mathematics?

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