(bell ringing) (kids cheering) - 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, Kiffin, Bill and Math Dylan.

(kids cheering) - Hello chipmunks welcome to Math Park.

I'm park Ranger A. Rith Metic, but you can call me Ranger Rith.

Math Park is the place where B is Bumble but never a mumble, hummingbirds know the words, and math is always fun.

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

- Hey, Ranger Rith there are UFOs flying around there.

- No, no.

Those aren't UFOs, that's a greater than symbol and that's all less than symbol.

- How can we tell them apart?

- Well, one easy way is to think of them as hungry creatures with their mouth open towards the bigger number.

Watch.

[Ranger Rith] Seven and three.

The hungry mouth is open to the seven.

Seven is greater than three.

Four and five.

The hungry mouth is about to eat the five.

Four is less than five.

Fifteen and twelve, what number should the hungry mouth trying to eat?

That's right.

Fifteen.

Fifteen is greater twelve.

Got it?

- Got it.

- All right.

(video tape rewind) (bongos playing) - [Narrator] What number is on the left?

Eight hundred and twenty four.

What numbers on the right?

Eight hundred and thirty one.

Now what should go between them greater than or less than?

Less than is correct because eight hundred and twenty four is less than eight hundred and thirty one.

Oh look, they're changing places.

And now eight hundred thirty one is on the left and eight hundred and twenty four is on the right.

Now what should go between them?

Greater than.

That's right!

Wow.

They are such great dancers.

Bye guys.

(trumpet music) (car screeching sound) (spring sound) [Narrator] Oh wow I think we better try that again.

Ah we'll be right back after this.

- Oh that looks painful.

(tape rewinding sound) (playful violin music) - [Narrator] This is a one, If you have ten ones, it looks like this.

This is a ten If you have ten tens, 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, hundred, thousand.

And we can use these blocks to make numbers, watch this.

(children's music) - [Narrator] and let's see what the chef is up to here.

We have one hundred, and two ones.

What number does that make?

If you said one hundred two.

Congratulations.

And we have some base ten blocks getting all clean.

Let's see.

What number does this make?

Two hundreds.

Four tens, two ones?

That makes two hundred forty two.

Good job.

All right.

Something's coming out of the oven there And what number does that make?

All right.

If you said two hundred four, you are right.

Two hundreds and four ones two hundred four.

Good job.

(techno music) - [Narrator] 519.

What number is in the hundreds place?

Can you say it before?

The number turns blue.

(clock ticking sound) (light up sound) (dissolving sound) - Hey everybody, look at what I have.

It's a bag of balloons it's for my nephew's birthday party.

You know, I really like the yellow ones.

Like this one.

(blowing up ballon) - Hey, look at that, this balloon has a number on it.

Can you say it?

That's right.

Seven hundred twenty six.

Whoops.

Oh, I'm so glad I found this balloon.

Let's blow it up again so we can see the number on it.

- Hey Janet, what do you got there?

- Oh, hi Mike.

I have a balloon, my friends and I are going to watch as we blow it up and see what number appears.

- Hm.

(ballon blowing up) - [Mike] Hum?

- That's seven hundred, plus twenty, plus six.

- Hey that wasn't there.

The last time I blew it up.

- Well, you said it said seven hundred twenty six.

Seven hundred plus twenty plus six, that's expanded form for seven hundred and twenty six.

- Oh - And that's not the only thing that's expanding your imagination.

Whoo hoo.

- Hey Mike - AH!

- What's got eight legs, three eyes and this purple.

- I don't know?

What?

- I don't know either, but it's crawling up your neck.

- No... what!

Get it off me!

Get it!

Get it!

Get it off me!

- There's nothing.

There's nothing here!

(Janet laughing) - I'm sorry Mike, I guess that was just my expanded imagination.

(techno music) (rewinding video sound) - [Narrator] Hey Ashley, what do you call a rabbit that is covered in ladybugs?

- Hmm, I don't know?

What do you call a rabbit that's covered in lady bugs.

- [Narrator] Bugs Bunny.

(drums) (trumpets playing) - [Narrator] Okay.

Can you tell me what this number is?

If you said one hundred thirty one.

You're correct.

That's one hundred and thirty one in standard form.

Let's see if she can show it to us in expanded form.

There we go.

One hundred plus thirty plus one.

That's one hundred and thirty one in expanded form.

(jazz music) - You know, Sam I just got back from seeing a friend who broke his leg in two places.

- [Piano Player] Oh!

What did you tell him?

- I said, stay out of those places.

- [Piano Player] Ugh.

(multiple keys on piano) - That's not funny, and if you don't pay close attention, you're going to make a math mistake.

(piano music) - [Narrator] Let's see if we can catch somebody in a math mistake.

- Oh sir.

Sir!

Hi.

Could you do us a favor please?

Would you please write four hundred eight in expanded form?

Yeah.

Expanded form.

Yeah.

Right.

Okay.

Yeah just use that marker right there yeah, uh huh.

(piano music) - [Narrator] Okay.

He's done.

But sir you made a math mistake.

Yes, boys and girls do you know what that math mistake is?

(clock ticking) (piano playing) - [Narrator] Yeah right.

Yeah well it's okay.

Not to worry.

We all make mistakes from time to time But in this case you can correct your mistake.

Yeah let's see what you're going to do.

Okay.

Great job with the erasing there I must say.

All right.

Oh, he wants to make sure it's very clean.

Good.

Okay.

Remember we're writing four hundred eight in expanded form.

Okay four hundred plus eight.

Four hundred plus eight.

Is that right?

Boys and girls?

It sure is.

Four hundred plus eight is the same thing as 408.

Good job, sir.

And thank you very much.

(spring sound) - Well, he finally got that right.

It's a mystery to me.

How we ever figured that out.

(video rewinding) - Now it's time for the Math Park mystery number.

See if you can figure it out.

- [Narrator] The digit and the hundreds place is the same as the number of ears three rabbits would have.

- [Narrator] The digit and the tens place is greater than three, but less than five.

- [Narrator] The digit and the ones place is the same as the number of wheels on two cars.

- Did you solve the mystery?

Today's mystery number was six hundred and forty eight.

If you got it right.

Hot diggety.

If you didn't keep trying, you'll get there.

(person making siren sound) - Did you hear that?

That means Math Park is closing for today.

Until Math Park reopens.

I salute you math chipmunks.

(children cheering) (fun dance music) (piano slide)