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NARRATOR: Hello Snoot.

Having a snack?

What ARE you eating?

SNOOT: (ALIEN LANGUAGE)

NARRATOR: Space grubs and astro bugs?!

Lovely… All part of a balanced alien diet, I suppose?

SNOOT: Mmm.

NARRATOR: That does look like quite a lot of snacks.

How many do you need?

SNOOT: (ALIEN LANGUAGE)

NARRATOR: 8 a day?

If you say so.

Let’s see if you’ve got enough.

Why don’t you start by counting up the astro bugs?

1… 2… 3.

Then the space grubs.

That’s 1… 2… 3… 4… 5.

Now all you need to do is add 3 to 5, which makes 4… 5… 6… 7… 8 all together.

FIN: (ALIEN LANGUAGE)

NARRATOR: Oh, hello Fin.

FIN: (ALIEN LANGUAGE)

NARRATOR: You think grubs should always be counted before bugs?

OK, if that’s how you want to do it.

Let’s count the space grubs first.

1… 2… 3… 4… 5.

Then the astro bugs.

1… 2… 3.

Now take 5 and add 3 and what do you get?

6… 7… 8 again!

SNOOT: (ALIEN LANGUAGE)

NARRATOR: That’s right Snoot, it’s exactly the same as what you had before.

The fact is, it doesn’t matter which way round you count these cosmic creepy crawlies, the answer will always be the same.

BOTH: Aha!

NARRATOR: That’s how it works when you add up numbers.

It doesn’t matter which order you put them in, the answer will always be the same.

FIN: Yum yum yum…

(LAUGHING)

NARRATOR: Fin, that wasn’t very nice.

(BURPING)

NARRATOR: Hello you two, I see you’re juggling plasmoids.

SNOOT: (ALIEN LANGUAGE)

NARRATOR: Very impressive.

It looks like you’ve got 1… 2… 3 plasmoids mastered.

SNOOT: (ALIEN LANGUAGE)

NARRATOR: Do you think you could manage 4?

OK then Fin, let’s see you.

Snoot, why don’t you give Fin one of your plasmoids?

Thank you Snoot.

So you had 3 plasmoids, and you gave one away.

That’s left you 2 to juggle with.

Easy!

Now your turn Fin.

You had 3 plasmoids, then Snoot added one, so now you’ve got 4.

Go for it.

Maybe that wasn’t such a good idea?

Maybe give that extra plasmoid back?

SNOOT: (ALIEN LANGUAGE)

NARRATOR: That’s quite right Snoot.

First you had 3 plasmoids each, then you took one of yours away leaving you with 2 and added it to Fin’s, giving Fin 4.

Then Fin took one of the 4 away and added it to your 2, giving you 3 plasmoids each again.

FIN: (ALIEN LANGUAGE)

NARRATOR: Exactly right Fin.

Adding one is the opposite of taking away one.

3 add 1 equals 4, and if you turn that sum around, you get 4 minus 1 equals 3.

You could do that with any numbers you like.

For example, 4 add 2 equals 6, and 6 minus 2 equals 4.

BOTH: Aha!

NARRATOR: Now then, who’s ready for some more juggling?

PLIMBLE: Plimble!

NARRATOR: Ah… 3 balls is still very good.