Order of Operations & Exponents

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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 acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What does the term 'exponent' mean?

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An exponent is a number that indicates how many times to multiply a base number by itself. For example, in 2^3, 2 is the base and 3 is the exponent, meaning 2 is multiplied by itself 3 times: 2 x 2 x 2.

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Subtraction and addition are performed from left to right, so 8 - 3 is performed first, resulting in 5, then 5 + 2 = 7.

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What does the acronym PEMDAS stand for?

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PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).