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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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