Transcript Order of Operations

Order of Operations
Created by
Cristina Salas Leal
November 17, 2007
Objective

The students will learn to solve
problems that include more than one
operation.

TEKS (6.2E) The student is expected
to use order of operations to simplify
whole number expressions (without
exponents) in problem solving
situations.
Math Journal

Take a few moments and write
down the question and answer.

Why do we have order of
operations in math?
What is the order of operations?

Order of Operations


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
This is the process used to
solve mathematical expressions
with more than one operation.
Step 1 – Do all operations in
parentheses FIRST.
Step 2 – Multiply & Divide from
left to right
Step 3 – Add & Subtract from
left to right.
What is an expression?

An expression is a mathematical
sentence that has numbers and
operations but no equal sign.

Example
24 + 10 – 2 x 8
What is an Equation?

An equation is a mathematical
sentence that contains,
numbers, operations and an
equal sign.

Example
18 + 11 x 5 = 73
Solve



Which operation do you
do first, subtraction or
multiplication?
Multiplication
Then subtract
Solve


Do what's in the
parentheses
FIRST
Do multiplication
before subtraction
Internet Websites


Solve the expressions and guess the
mystery picture
Click here - Mystery Picture
Play Operation Order
Start with the Easy level
Create the correct expression
Click here –
Funbrain.com's Operation Order
Game
Internet Websites cont’d

See how many expressions you
can solve in 120 seconds.
Click here –
MathFROG - Order of
Operations
Thank You