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9.3 Order of Operations

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**Please Excuse My Dear Aunt Sally**

P.E.M.D.A.S Please Excuse My Dear Aunt Sally

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**E Exponents - Find the value of numbers with exponents**

Parenthesis - (perform operations in parenthesis first) E Exponents - Find the value of numbers with exponents

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**M/D Multiply OR Divide from LEFT to RIGHT**

A/S Add OR Subtract from LEFT to RIGHT

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**Example 1 SHOW ALL YOUR WORK**

÷ 3 2

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6 x ÷ 3 + 1

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Your Turn Pg. 250 X – 450 ÷ 3 2

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**How do you use order of operations to simplify expressions?**

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P. E. M. D. A. S. 4 x (9 ÷ 3) (12 −2) 2

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**Simplify the expression using Order of operations**

−

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Your Turn Pg. 251 5 x (20 ÷4) − (5+2) 2

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**How do you use the order of operations to simplify expressions?**

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