This, is the start of something wonderful for me.
So today in school, I was thinking about an adding machine in blockland. X + Y = Z, the x being the number of bricks on the left, the y the number on the right, and Z is the outcome. It is very simple, but using firerelay ups helped me. Now to get to the pictures.
The machine itself, I wanted to go for an 1800s theme.

Add two bricks to it

Click the add button, the red clears it for a new equation.

BOOM! You get your answer.

You can even use bricks stacked on top of one another!

So, that's it. Expect a v2 soon with triple digits as I explore more of adding using bricks. I will make it so some bricks have a value of 10 or something, but for now, what do you think of a semi-beginner eventer?
EDIT:
by popular demand, have a videoOh, and how do I get my voice on fraps?
Here, have the save if you like. Don't steal it D: