Math Tricks - Remembering PEMDAS

[Pencil Scratching]

Julie: Hey, it's Julie with Mahalo.com
with some hints on

orders of operations.

Now when solving many problems,
you have to go in a very specific

order in order to get the correct answer.

And the correct order is:

Parentheses,

exponents,

then multiplication and division,

then addition and subtraction.

Students across the country
remember this as

"Please Excuse My
Dear Aunt Sally."

Good way to remember it.

Now it's important to know
that these go in certain sections.

Parentheses goes first.

The next section, exponents.

The section after that is
multiplication and division,

so we do multiplication and division
from left to right,

in order that's seen in the problem,

that's very, very important.

Then, obviously,
addition and subtraction.

Same thing, from left to right
in order that it's seen.

Now you can consider these sections
a little bit like

levels of a video game.

You can't move on to the next level
until you've completed the first one.

So you need to go through your
entire problem and do

all parentheses first.

Once you finish that,
you move on to exponents.

Once you finish that, your next level
is multiplication and division.

And you do all multiplication and division
from left to right.

Once you finish that, you can then move
on to your addition and subtraction.

And that's order of operations.

Good luck!

Thanks for learning with me today!

If you have any specific problems
or requests,

you can email them to
[e-mail]

See you next time!

[Upbeat music]