1. Order of Operations
Section 1.3

2. PEMDAS P - parentheses and grouping
- ( ), [ ], { }, and absolute value
- simplify within the grouping symbols first
- if there is more than one grouping, start at the innermost symbol first

3. PEMDAS
E - exponents
- evaluate all powers

4. PEMDAS M & D M - multiplication D - division
- you must simplify whichever comes first in the expression from LEFT to RIGHT

5. PEMDAS A & S A - addition S - subtraction
- you must simplify whichever comes first in the expression from LEFT to RIGHT

6. Examples
Problem/Answer Result

7. Examples
Problem/Answer Result

8. Examples
Problem/Answer Result

9. Examples
Problem/Answer Result

10. Examples
Problem/Answer Result

11. Examples
Problem/Answer Result

12. Examples
Problem/Answer Result

13. Homework
Pg. 91 #56-70 all
Please show all of your work and do not use a calculator.
Work neatly and circle/box off your final answer.

14. Algebraic Expressions
An algebraic expression is an expression that contains at least one variable.
You can evaluate an algebraic expression by replacing each variable with a value and then applying the Order of Operations

15. Example Evaluate using the given values.
a(5a + 2b) if a = 3 and b = -2

16. Example
Evaluate using the given values.

17. Homework
WS # odd
Show all of your work and do not use a calculator.
Quiz tomorrow – Order of Operations & Evaluation