1. 1.2 PARENTHESES, ORDER OF
OPERATIONS
Chapter 1: Working with Variables

2. ORDER OF OPERATIONS
 In mathematics, it is important that we agree upon a
set of “rules” to follow so that we can all arrive at
the same, correct answer
 One of the most important “rules” we have are the order
of operations
 The Order of Operations tells us how to approach an
expression that contains multiple operations

3. ORDER OF OPERATIONS
1. Parentheses: perform the operation inside of the
parentheses first
2. Multiplication/Division: perform multiplication
and division from left to right
3. Addition/Subtraction: perform addition and
subtraction from left to right

4. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

5. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

6. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

7. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

8. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

9. EXAMPLE: FIND THE VALUE OF THE
EXPRESSION

10. VARIABLES AND THE ORDER OF OPERATIONS
1. Identify the value of the variable(s)
2. Replace the variable(s) with the given value(s)
3. Perform the operations in the correct order

11. EXAMPLE
If x = 4, find the value of each expression

12. EXAMPLE
If a = 6, find the value of the expression

13. EXAMPLE
If a = 6, find the value of the expression

14. EXAMPLE
If a = 6, find the value of the expression

15. EXAMPLE
If a = 6, find the value of the expression