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PAGE: 43 | SET: Exercises | PROBLEM: 54 |

Order of Operations:
To simplify the expression follow the order of operations: (PEMDAS)
1. Evaluate the expressions inside the Parenthesis/Brackets (P).
2. Evaluate Powers/Exponents (E).
3. Multiply and/or Divide in order from left to right (MD).
4. Add and/or Subtract in order from left to right (AS).
A simple technique for remembering the order of operations is turned
into phrase "Please Excuse My Dear Aunty Sally"
The expression is .
(Substitute
and n =
)
First operation is multiplication.
(Multiply:
)
(Multiply:
)
Next operation is division.
(Divide:
)
Next operation is subtraction.
(Subtract:
)
The simplified expression value is 20.

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