Transcript Order of Operations - Woodland Hills School District

Order of
Operations
By: Lisa Foti
EDT 210 Wednesday 9–10:50
Objective:
• To give students a better understanding of the
order of operations.
▪Practice problems and quizzes are included to
assist in the lesson.
Audience:
•Fourth to sixth grade.
Menu
What does
order of
operations
mean?
Quiz
P.E.M.D.A.S.
Credits
Practice
Home
What does order of
operations mean?
• Order of operations is the order in which
you solve a math problem with many
components.
• The first rule of order of operations is
P.E.M.D.A.S.
• Don’t forget to solve the problem from left
to right!
P E M D A S
l
x
e
y
e
u
a
c
a
n
l
a
u
r
t
l
s
s
e
e
y
Parentheses
•The first step of the order of operations is
parentheses.
Ex. (3 x 6) = 18
Ex. (3 x 6) + 2 = 20

18 + 2 = 20
Exponents
•The second step of the order of operations is
exponents.
Ex. (3 + 2)2 = 25

52 = 25
Ex. 3 + (3 + 2)2 = 28

3 + 25 = 28
Multiplication
•The third step of the order of operations is
multiplication.
Ex. 6 x 4 = 24
Ex. (3-2)2 x 4 = 4

1x4=4
Division
•The fourth step of the order of operations is
division.
Ex. 8 ÷ 2 = 4
Ex. 8 ÷ 2 + (3 x 6) = 22

4 + 18 = 22
Addition
•The fifth step of the order of operations is
addition.
Ex. 3 + 6 = 9
Ex. 3 + 4 ÷ 2 = 4

3+2=4
Subtraction
•The last step of the order of operations is
subtraction.
Ex. 16 – 4 = 12
Ex. 18 – (2 + 2)2 = 2

18 - 16 = 2
Practice
Copy the following problems into your
notebook and practice them.
(3 + 5) – 2 =
3 + 8 ÷ 4 + 12 =
28 – 32 x 2 =
(3 + 5)2 – 2 =
Answers
Practice
Copy the following problems into your
notebook and practice them.
42 + (2 x 5) x 3 – 6 ÷ 2 =
(3 x 2)2 ÷ 5 – 3 + 4 =
Answers
Practice
Need extra help? Try this:
More order of operation problems
Quiz
Copy the following problems on a piece of paper and
hand them in when you are done.
12 x 2 – 4 x 6 =
(12 + 2) – 12 ÷ 22 x 1 =
Answer
Quiz
Copy the following problems on a piece of paper and
hand them in when you are done.
(3 x 2)2 x 4 ÷ 2 + 32 – 4 =
(12 + 2) – 12 ÷ 22 x 1 =
Answer
Credits
Graphics from:
Microsoft Office Online
Website from practice help: Math
Goodies
http://www.mathgoodies.com/lessons/vol7
/order_operations.html
The End
Thank you for looking at my
PowerPoint lesson plan!