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1.4 Order of Operations

The 8 Steps To Evaluate An Expression With More Than One Operation
by

Danielle Boucher

on 23 September 2013

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Transcript of 1.4 Order of Operations

The 8 Steps To Evaluate An Expression With More Than One Operation
Mrs. Meaney
Fall 2013
Step 1
Write down PEMDAS.
Step 2
Rewrite the expression to be evaluated.
P
E
MD
AS
(5 - 8)² + (-36) ÷ 6 x 2
Step 3
Substitute values for variables, if necessary.
(5 - 8)² + (-36) ÷ 6 x 2
Step 4
Ask yourself, "Are there any
parentheses ( ), brackets [ ], absolute values ||, or fraction bars?"
If yes, evaluate the expression in the parentheses.
Evaluate the expression in the parentheses.
If no, continue.
(
5 - 8
)
²+(-36) ÷ 6 x 2
(
-3
)
² + (-36) ÷ 6 x 2
Step 5
P
E
MD
AS
Ask yourself, "Are there any
exponents (powers or roots)?"
(-3)² + (-36) ÷ 6 x 2
If yes, evaluate the power.
If no, continue.
Evaluate the power.
P
E
MD
AS
(-3)
²
+ (-36) ÷ 6 x 2
9 +(-36) ÷ 6 x 2
Step 6
Ask yourself, "are there any multiplication or division operations?"
9 + (-36) ÷ 6 x 2
If yes, evaluate from left to right.
If no, continue.
Divide!
9 + (-6)
x
2
P
E
MD
AS
Multiply!
9+ (-12)
Step 7
Ask yourself, "Are there any addition or subtraction operations?"
9 + (-12)
If yes, evaluate from left to right.
If no, continue.
Add!
P
E
MD
AS
9

+

(-12)
-3
Step 8
Check your answer! Make sure it makes sense.
Order Of Operations Song
ORDER OF OPERATIONS
ORDER Of Operations Prezi
Sally is proud!!
Sally
We will use Ms. Meaney's 8 Steps to help you!!!
Sally
(
8 - 2
)
² + (-36) ÷ 6 x 2
(5 - 8)² + (-36) ÷ 6 x 2
(-3)² + 36 ÷ 6 x 2
9 + (-36)

÷

6 x 2
9 + (-6) x 2
(5- 8)² + (-36) ÷ 6 x 2
(-3)² + (-36) ÷ 6 x 2
9 + (-36) ÷ 6 x 2
(5 - 8)² + (-36) ÷ 6 x 2
YOUR TURN
:

Evaluate the expression when
a = 4 , b = -6, and c = -12.
Full transcript