Math Yeti

Disclaimer:
I'd love to work with a UI Designer!I'm not making any money out of this so it will be unpaid (If I actually make money, it will be paid) but if you're still into it feel free to reach out!

An extremely basic Math Game for elementary school students. 

Basically:
My sister wanted a math game to practice multiplication without keep asking someone to check her answers or try to come up with questions. So I started making it but then I wanted to keep developing it so every student can have this. It is really early on the project but when I get it to an acceptable level I'll start contacting schools and teachers to promote and improve the game with the help of educators.
I'm doing the UI and the coding myself but the sounds are usually commercial free assets.

Open to any recommendations!