> Did you learn anything
To be honest, no.
> would you replay it
To be honest, no.
> does it have clear explanation
Pretty good, but too simple, I think. Progressive difficulty would be appreciated.
> what made you angry
The fact that this game is more than unfinished. Maybe at least put an effort on graphics before posting? Also, the MK sound effects clearly did not do the trick for me.
> bored
As I said before, way too simple and short. Also, are these the same questions over and over? I hope not (but don't want to replay it).
> what would you remove or put?
ADD CONTENT. Clearly. You can make it a good math learning tool, but it will not be in "under a few hours".
Sorry for the pretty harsh comment, but there is really not much stuff to see here, and asking us how we feel about a game that has kind of no content in it yet is weird. You could have created more questions, worked on the visual aspects, and THEN asked people how you could improve it, I guess.