1. Order of Operations

2. Cornell Notes Order of Operations
PEMDAS P= E= M= D= A= S=
KEY THINGS TO REMEMBER
EXAMPLE:
Please Excuse My Dear Aunt Sally
Parenthesis
Exponents
Multiplication or
Division
Addition or
Subtraction
Always work from LEFT to RIGHT
When working with division or multiplication*****DO WHICHEVER ONE COMES FIRST***
EXAMPLE: (25÷5 X 6)
Work from Left to Right
First you do the division
25 ÷ 5=5 division
Then, 5 X 6=30

3. EXAMPLE:
PARENTHESIS
EXPONENTS
PRACTICE PROBLEMS
EXAMPLE: (25 – 5 + 6)
When working with addition or subtraction****DO WHICHEVER ONE COMES FIRST
Work from left to right
Since subtraction comes first, do 25 -5=20
a. Then, do the addition of 20+6=26
Solve the equations inside the parenthesis BEFORE working any other part of the problem.
REMEMBER: 3²= 3 X 3=9
125 ÷ (5² + 5² ÷5) +3=

4. SHOW YOUR WORK:
PARENTHESIS
125 ÷ (( ÷ 5) - 6)
125 ÷ ((25 + 6) -6)
125 ÷ ((31) -6)
125 ÷ 25 5
INNER MOST PARENTHESIS FIRST
WORK FROM LEFT TO RIGHT
PE(MD)(AS)
SUMMARY AND WHAT “ISSUES” DO I HAVE WITH PEMDAS