I like the concept - it was a pretty nice brain teaser, definitely would help if you are good in maths :D
there are a lot of room to improve though, for instance:
- most of the stuff on screen seem pretty low res, displayed on higher res, making things blurred. would definitely help if things are clearer
- can probably add more "game feel", like visual feedback when the player wins/loses each part
good job on the game!