in my house there lives a mouse

And in these houses too.

There are five mice living at house number 5.

And if you peek inside, you will be able to see four of them upstairs.  Can you count them?

How many mice are there downstairs?  How do you know?

Did you get it right? 

Next door, at number 6, there live six mice.

And if you peek inside, you will be able to see three mice upstairs.  1, 2, 3.

So, how many mice are there downstairs?  How can you tell?

A bit further up the road is house number 7.  And at number 7 live seven mice.

Downstairs I can count three mice…..

which means that upstairs there are…..

four!

I wonder.  Can you make yourself a house for mice like the ones we made?  What number would you put on the door?