Can anyone help, 12year olds algebra homework

[Baffledbymaths]

Help!
I'm absolutely hopeless at maths and dd has just shown me the maths homework for this week and doesn't understand it, neither do I
What is the expression? I'm hoping it's really simple once it get explained, Google isn't helping me!

What is the homework??

What is the question?

Sorry picture might help!

It's not letting me upload it
Its like this
In Out
Y +2 ?

It asks to write down the missing expression.

In is above y and out is above ?

Y goes into the machine. Y is a number which presumably we don't know, 2 is added to it, so what comes out? The expression is y+2

Thank you so much, I did suggest that but it seemed too simple and dd looked at me like, really?
Much appreciated

I guess that's the first question on the sheet? Be careful as it gets more complex: don't forget BIDMAS!

Agree with Alaska.