At its core, it's an alright and very short puzzle-platformer, where you use various math operations to remove, add, increase the size of or reduce the size of blocks.
Puzzles are overall pretty easy and the game introduces these operations at a pace where it never gets confusing.

Unfortunately, the game suffers from a few technical issues which make it annoying to play. There are visible frame drops (at least on Windows 10) and the controls and jumping are unresponsive at times. It sometimes took me pressing the space bar thrice before the character properly jumped.

Overall, not a bad idea and could be expanded into a fun, complete game, but due to its current technical issues, I wouldn't recommend it.