Transcript Order of Operations

Order of
Operations
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!
PEMDAS
Please Excuse My Dear Aunt
Sally
Do you have other
Mnemonics?
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
Quiz
12 x 2 – 4 x 6 =
(12 + 2) – 12 ÷ 22 x 1 =
Answer
Quiz
(3 x 2)2 x 4 ÷ 2 + 32 – 4 =
(12 + 2) – 12 ÷ 22 x 1 =
Answer