- Hi guys!

We're going on a field trip to learn all about place value.

Math Park, here we come!

- [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 Riff, Ashley, Charles, Barbara, Mike, Janet, Kippin, Bill, and Math Dillon.

(cheery music) - Hello, chipmunks, welcome to Math Park!

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

Math Park is the place where frogs leap to conclusions, and woodpeckers would if they could, and math is always fun.

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

- [Narrator] This is a one.

If you have 10 ones, it looks like this.

This is a 10.

If you have 10 tens, it looks like this.

This is 100.

And if you have 10 hundreds, it looks like this.

This is 1,000.

So remember, one, 10, 100, 1,000.

And we can use these blocks to make numbers.

Watch this.

- Let's see what number we have cooking in the pan here.

Uh, it is... Oh, we have 100.

We have three tens and two ones.

I'd say that makes the number 132.

Hey, I'm right there it is.

Okay.

Now we got some numbers swimming around in the sink, getting clean.

Let's see, what number do we have here?

136, one hundred, three tens, six ones, 136.

Okay.

Something's coming out of the oven.

What do we have here?

We have, well, you tell me what is that?

If you said 144.

You are correct.

One hundred, four tens, four ones, 144.

- Mmm!

Those base 10 blocks look delicious.

- Base 10 blocks help us understand place value.

We have ones, tens, and hundreds.

When you look at a number, we have ones, tens, and hundreds as well.

Now, wasn't that refreshing?

- Well, maybe it's time we ditched the base 10 blocks.

(horse neighs) And start dealing with some real numbers.

I've got a real pretty number.

- Wow.

Look at that number on the wall.

Can you say it?

That's right.

785.

Can you tell me what digit is in the tens place?

Eight.

That's right.

Can you tell me what digit is in the ones place?

If you said five, you're correct again.

Can you tell me what digit is in the hundreds place?

Seven.

That's correct.

It went away!

- Hey Jannet, what are you up to?

- Oh, nothing.

My friends and I were just looking at the numbers that were on the wall.

- Hey, how's it going?

Uh, numbers on the wall.

Janet, you are so cute!

- No, really!

The number was just up there.

- Well sure it was!

Janet, you have probably the best imagination of anybody I know!

I love it.

What do you suppose, Tinkerbell made the number disappear?

- No, Tinkerbell didn't make the number disappear.

Hey, what have you got wrapped up there?

- Oh, I lost a tooth.

See right here?

I'm going to go home, and I'm going to slip it right underneath the pillow.

When I go to sleep, tooth fairy's going to give me a dollar, put it right in there.

Ooh, I can't wait.

Hey I gotta run now.

Oh, by the way, say hi to Tinkerbell for me.

- [Narrator] 625.

What number is in the tens place?

Can you say it before the number turns blue?

- I'm thinking of a number, and that number is 425.

Here it is in written form.

Here it is in standard form.

And here it is in expanded form.

400 plus 20 plus five, 425.

- [Narrator] Can you say this number?

235, very good.

That's 235 in standard form.

I wonder if this guy can write it in expanded form.

Look at that.

200 plus 30 plus five.

That's 235 in expanded form.

Good job.

I wonder what he's looking at.

- Howdy sidewinders, I'm Math Dillon.

And we're going to have a quick draw contest to see who can write in expanded form faster.

This is how it's gonna work.

I'm going to give you a number in standard form.

And when I say draw, you're gonna grab your pad and your writing utensil and we're gonna write it out in expanded form and see who's fastest.

Me, or you.

You ready?

The number we're going to use is 432.

Ah, don't get started yet!

Wait till I see draw.

432, get ready.

Get set.

Draw!

(laughter) almost there!

Almost there!

Did you get 400 plus 30 plus two?

Well if you did, you were correct.

You did finer than a pig with a gold tooth, but don't think you're gonna beat me next time.

(laughter) - [Narrator] And now it's time to play build a number, where we'll find out which of our two friends can build the bigger number.

Today, it's Janet versus Mike!

Round one.

The first digit is three.

So let's see.

Janet is going to put hers in the ones place, and Mike goes for the tens place.

Okay, the next digit is six.

Mike puts his in the hundreds place and Janet goes for the tens place.

Let's see who's going to win.

Our next digit is seven.

Well, it looks like Mike has no choice but to put his in the ones place and Janet of course put hers in the hundreds place.

Janet, what number did you build?

- 763.

- [Narrator] And Mike?

- 637.

- [Narrator] So who built the bigger number?

Janet did!

Because 763 is greater than 637.

Way to go, Janet!

Okay, round two.

Here we go.

The first digit is five.

Let's see where they're going to put it.

Mike put his in the one's place and Janet put hers in the tens place.

Okay.

That might work.

Let's see.

The next digit is six.

Where are they going to put it?

Ooh, Janet put her six in the hundreds place, and Mike put his in the tens place.

Hmm.

What numbers does Mike need to win?

Mike, what number do you hope comes up next?

- I am praying for a seven, eight or a nine.

- [Narrator] Well, let's see what happens.

The last digit is eight.

Whoa.

So Janet has no choice but to put it in the ones place and Mike puts his in the hundreds place.

So tell me Janet, what number did you build?

- 658.

- [Narrator] And Mike?

- 865.

- [Narrator] So who built the bigger number?

That's right, it's Mike.

865 is bigger than 658.

Mike did it!

Round three.

The last round, the first digit is four.

They're both playing it safe by putting it in the ones place.

The next digit is six.

Ooh, tough choices here.

Mike put his in the hundreds place and Janet played it safe and put it in the tens place.

Hm, but what number does Janet need to win?

Janet, what number do you hope comes up next?

- I'm hoping for at least a seven.

- [Narrator] Well, let's see what number comes up.

The last digit is nine, wow.

Well Janet has no choice but to put it in the hundreds place and Mike has no choice but to put it in the tens place.

Janet, what number did you build?

- I built 964.

- [Narrator] And Mike?

- I built 694.

- [Narrator] So who built the bigger number?

If you said Janet, you're right.

And she is the winner!

Congratulations, Janet for winning today's game!

Better luck next time, Mike.

- Now it's time for the Math Park mystery number.

See if you can figure it out.

- [Narrator] The digit in the hundreds place is the same as 10 minus five.

Write it down.

The digit in the ones place is greater than six, but less than eight.

Write it down.

The digit in the tens place is the same as 12 minus 10.

Write it down.

What is today's mystery number?

- Did you solve the mystery?

Today's mystery number was 527.

If you got it, good job!

If you didn't, keep trying.

You'll get there.

(siren blares) Did you hear that?

That means math park is closing for today.

Until Math Park reopens, I salute you math chipmunks!

(cheery music)