Order of Operations Intro

Order of Operations

I can explain the order of operations rules and why they are necessary.

Order of Operations

• When you see an expression with more than one operation, follow PEMDAS! PEMDAS is an acronym that stands for:

• Parentheses: ( ) { }

• Exponents

• Multiplication / Division (LEFT TO RIGHT)

• Addition / Subtraction (LEFT TO RIGHT)

• "Please excuse my Dear Aunt Sally"

Open Ended

QUICK! Let's see if you remember- what is the acronym for Order of Operations??

Good job! PEMDAS is the acronym we use to remember the Order of Operations.

Open Ended

The "P" in PEMDAS stands for (write the word OR put the symbol):

Good job! The P is for parentheses. ( ) { }

Remember, we are not worrying about exponents right now.

Up next we have multiplication and division!

Be careful! Multiplication and division can show up in many different ways.

Open Ended

The "MD" in PEMDAS stands for multiplication and division. How do you know which one to do first?

Good job! We look from LEFT TO RIGHT to figure out which one comes first.

Open Ended

What does the "AS" in PEMDAS stand for?

Addition and subtraction! Just like multiplication and division, LOOK FROM LEFT TO RIGHT!

Multiple Choice

In this expression, what do you solve first? REMEMBER PEMDAS!

• 5 x 4

• 4 - 3

• (3-2)

Multiple Choice

In this expression, what do you solve first? REMEMBER PEMDAS!

• 20 / 5

• 5 + 12

• 12 x 3

Open Ended

Why does the Order of Operations matter? What happens if you don't follow the correct order?

Poll

Select everything you agree with:

• I know what Order of Operations is.

• I can tell you what PEMDAS stands for!

• I know why the Order of Operations is important.