Order of operations:

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Key Concept

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Order of operations (PEMDAS)

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To simplify the expression follow the order of operations: (PEMDAS)

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1.     Evaluate the expressions inside Brackets/Parenthesis (P).

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2.     Evaluate Powers/Exponents (E).

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3.     Multiply and/or Divide in order from left to right (MD).

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4.     Add and/or Subtract in order from left to right (AS).

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A simple technique for remembering the order of operations is turned into phrase

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“Please Excuse My Dear Aunty Sally”

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\"\"

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The expression is \"\".

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\"\"                       (Substitute: a = \"\", d = 6) \"\"

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 In the given expression there are grouping symbols.

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Evaluate the expression within the parenthesis.

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\"\"                         (Subtract: \"\")

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Next operation is evaluating powers.

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 \"\"                                           (Evaluate power:\"\")

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Next operation is addition.

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\"\"                                         (Add: \"\")

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\"\"

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The value of the expression is \"\".