Unit 4.2 Expressing Relationships with Numerical Values

If twenty cars full of clowns take advantage of the offer, how much is the city going to [Lots of VW cars in the desert]

have to PayPal out? Every once in a while you’ll come across

a problem like this that…really isn’t all that difficult. [Teacher with clown makeup on]

It’s just getting a handle on what the problem is saying – and what it’s asking you – that

can sometimes give you a headache like you’ve just taken an air horn in the ear. [A clown pops out of a bush and blows an air horn in a mans ear]

It usually helps to visualize the scenario. [Guy trying to work in an office with an air horn going off]

Here are our 20 cars.

Each of ‘em has 8 clowns inside.

And each of those clowns is going to make $15.

We can either attack this thing step by step or all at once…but all we really have to [Soldiers shooting guns]

do is multiply those three things together.

Let's do it, 20 times 8 times 15… is 2,400.

If we’d figured out first how many total clowns there were, we’d just take 20 times [Kid wearing a dunce cap]

8 to get 160.

Then take 160 times the amount of each PayPal check for $15. And…we still get 2,400.

Or, we could have figured out the amount for each car by taking 8 clowns times $15 to get

120, then multiply that by the 20 cars. [The working is shown on a blackboard]

And… 2,400 once again.

No matter how you slice it, the city is going to have to pony up $2,400 to its environmentally [Someone slicing vegetables]

conscious…or money hungry…clown population. But don’t feel bad for them. [Clowns lining up to get their money]

They’ll make up for it in parking tickets… [Police waiting to write parking tickets]