(bell rings) (kids cheering) - [Narrator] Get ready for a very special, super duper math class.

We're going on a field trip where learning math is tons of fun.

Our destination is The Math Park.

With our friends, Ranger Rith, Ashley, Charles, Barbara, Mike, Janet, Tiffin, Bill and Math Dillon.

(kids cheering) (upbeat music) - [Ranger Rith] Hello chipmunks.

Welcome to Math Park.

I am Park Ranger A. Rith Metic.

You can call me Ranger Rith.

Math Park is the place where geese are professional, ducks are quacks and math is always fun.

We're going to have grand time today, so let's get started.

- [Child] Ranger Rith, we're studying about ten thousands today.

That makes me nervous.

- [Ranger Rith] Oh, there, there now.

Don't despair.

Let's do a quick warm-up with four digit numbers.

- [Lifeguard] Hey, welcome back to Math Park beach.

You know, if you look around carefully you might just see some numbers going in to the Pacific.

That's a big number.

Can you say it?

Eight thousand two hundred and thirty one.

Hey, what's the value of three in this number?

The value is 30.

Because the three is in the ten's place.

Here is another number.

What's the name of this one?

Three thousand one hundred twenty.

It starts with a three.

Hey, what's the value of the three?

The value is 3000, right, because the three is in the thousand's place.

Oh, now that one is swimming away and here comes another.

What's this number?

Four thousand three hundred eighty two.

What's the value of three?

Three hundred, because the three is in the hundred's place.

Hey, I think you guys are going to make some good junior guppy lifeguards!

- [Narrator] Hello sir, would you do us a favor?

Do you think it would be possible for you to write 3180 in expanded form?

Yeah, in expanded form.

Right, right.

Okay, good.

This guy is so nice.

We've seen him do something like this before.

Okay, there's his first number, and his second number, and his third number.

Oh, that's it huh?

So, everybody in video land.

Did he write 3180 in expanded form correctly?

Well, sir, I'm afraid you made a math mistake.

(horn) You know, well it's okay.

I mean we all make mistakes from time to time, but you think you can fix it?

What should you do to fix it?

Oh, here we go.

I think he's figured it out now.

He added a zero to eight to make 80.

And now he has 3000 plus 100 plus 80.

Is that the right way to write 3180 in expanded form?

(children cheering) It sure is.

There you go, you got it.

Good job!

Oh, be sure to watch out for that banana peel.

(Drum clashes and clams) Oh, I bet that hurt.

(wolf howling) (country music) - [Math Dillon] Howdy, you little mini varmints.

I'm Math Dillon and we're going to have a little quick draw contest to see who can write in expanded form the fastest, and this is how it's going to work.

I'm gonna give you a number in standard form, and when I say draw, you're going to reach for your writing utensil and a piece of paper and we're going to see who's fastest writing in expanded form.

You or me?

All right, the number we're gonna use is 3522.

Get ready, get set, draw!

(Math Dillon laughs) Oh, you better hurry!

(Math Dillon laughs) I'm almost there.

Got it!

Here is the answer.

If you wrote 3000 plus 500 plus 20 plus two then you are correct!

My goodness, you're hotter than a lizard at a chili eating contest.

But don't think you're going to beat me next time!

(Math Dillon laughs loudly).

- [Narrator] Introducing, ten thousand's.

(Upbeat music) - [Sam] Boss, this ten thousand's stuff is hard to imagine.

- [Boss] Ah, take it easy Sam.

You know what, I'll explain it to you using base ten blocks.

Remember this bid that we saw before?

- [Narrator] This is a one.

If you have ten one's, it looks like this.

This a ten.

If you have ten ten's, it looks like this.

This is a hundred.

And if you have ten hundreds, it looks like this.

This is a thousand.

So, remember.

One, ten, hundreds, thousand.

- [Boss] SO, you can see that this is 1000.

We stack another one on there, that's 2000, 3000, - [Sam] 4000 - [Boss] 5000 - [Sam] 6000 - [Boss] 7000 - [Sam] 8000 - [Boss] 9000 - [Sam] 10000!

I get it boss.

- [Boss] That's right!

(Sam sneezes) - [Boss] Gascon time?

- [Sam] Ah, I hate it when that happens.

- [Boss] No problem, just stack 'em again Sam.

(Piano playing) - [Janet] Oh, hi!

You know it's been a long time since we've seen the numbers on the wall, and Mike always thinks I'm imagining the numbers are there.

Hey!

There are new numbers on the wall.

(car honking) Actually, those are digits that make a number.

Can you say what the number is?

This is a big one!

It's twenty seven thousand eight hundreds four.

Can you tell me what digit is in the thousand's place?

Seven?

Very good.

Can you tell me what number is in the hundred's place?

If you said eight, you're right again.

Can you tell me what number is in the ten thousand's place?

If you said two, you're right again.

- [Mike] What's two?

- [Janet] Oh, hi Mike.

I was just showing everyone the number on the wall and two is in the ten thousands' place.

- [Mike] No, it isn't.

It's no place.

- [Janet] Darn it.

Every time you show up the number disappears.

(Mike laughs) - [Mike] Janet, I'll tell you the one thing that isn't disappearing.

Your imagination!

- [Janet] Mike!

Ah, it's incredible!

- [Janet] Mike!

- [Mike] No, no, no.

Wait, I have to remind.

Guess what?

It's time for my favorite TV show.

Hannah Montana!

(Mike laughs) - [Mike] That Janet.

Isn't she amazing?

Hah!

What an imagination.

Seeing numbers on walls and everywhere.

It's an eight!

It's coming after me!

I hope it ate already.

(Electronic sounds) - [Narrator] 85,731.

What number is in the ten's place?

Can you say it before the number turns blue?

(clock ticking) - [Ashley] Ten thousand's.

Here is how they work with place value.

Look at this number.

34,527.

If we wanted to find out the value of three in this number, here is what we do.

First, let's start at the last digit.

The one's.

Next, is the ten's, the hundred's, the thousand's and the ten thousand's.

Three is in the ten thousand's.

So that means three ten thousand's.

We could add three ten thousand's.

10000 plus 10000 plus 10000 and we get 30000.

Or, we could write the three and then add zero's for all the other place value columns.

There it is!

30000.

(Jungle music) - [Narrator] All right.

It's time once again for the Math Park salsa dancers.

They are so inspired by their numbers.

What's that number on the left?

Ah, that's a biggie.

Twelve thousand eight hundred sixty seven.

And the number on the right is twelve thousand eight hundred sixty five.

If we're going to compare these two, we're going to freeze and let's see.

Both of them start with a one in the ten thousand's place, a two in the thousand's place, an eight in the hundred's place and a six in the ten's place.

We have to go all the way to the one's place to see that 12867 is greater than 12865.

Shew!

That was tough.

Oh, now I know what their going to do.

Just to try and trick us.

Watch this.

They are going to rotate.

That's right, they are going to change places.

Tricky guys!

Okay, so what would go in between them now?

That's right, less than.

12865 is less than 12867.

Well, that was a tough problem but they are good dancers.

- [Narrator 2] Now, there are those numbers the dancers were just holding.

You know, it's hard for me to compare them when they are side by side to put in the greater than or less than.

That's why I like to do it like this.

You see, vertically on top of one another, then I can compare the ten thousand's place, the thousand's place, the hundred's place, the ten's place and the one's place.

And I had to go all the way to the one's place to figure it out.

But this make's it a lot easier to know that 12867 is greater than 12865.

- [Sam] Hey boss!

If you had 768 dollars in your right pocket and 925 dollars in your left pocket, what would you have?

- [Boss] I'd say I have someone else's pants.

- [Old Lady] That's not funny!

- [Narrator 2] Okay, okay.

So what is funny?

- [Old Lady] You wanna see funny?

I'll show you funny!

(people laugh) - [Narrator 2] You're right.

That's hilarious!

(siren sounds) - [Ranger Rith] Did you hear that?

That means Math Park is closing for today.

Until my park re-opens, I salute you math chipmunks!

(children cheering)