Order of operations

1
Order of operations

• Please Excuse My Dear Aunt Sally
• P Parenthesis
• E Exponents
• M Multiplication
• D Division
• A Addition
• S - Subtraction

2
Order of operations

• 1. Parenthesis, brackets, braces, fraction bars,
  ( ), , .
• 2. Powers
• 3. Multiplication and Division from left to
  right
• Addition and Subtraction from left to right

3
Order of operationsPractice

• 1.) 5 x 7 6 /2 32
• 5 x 7 6/2 9
• 35 3 9
• 32 9
• 41
• 2.) P 2s 2(s 3) solve for s 5
• 2 (5) 2( 5 3)
• 10 2 ( 8 )
• 10 16
• 26

4
Order of operationsPractice

• 3.) 8 62 3 (2 5) / 8 3
• 8 62 3 (7) / 8 3
• 8 36 3 (7) / 8 3
• 8 36 21 / 8 3
• 8 15 / 8 3
• 120 / 8 3
• 15 3
• 18