I really like the concept of taking an educational game, in this case using math problems, and turning them into something a little more fun and easier to grasp. I certainly got the sense that the 21 levels featured were a good tutorial, but the only one I struggled on was one towards the end. I think I would have found the game a little more satisfying if there had been some puzzles that I really had to think about in order to beat. But with that said, it was a nice attempt and a concept I'd like to see more of in the future.
Thank you for the feedback regarding the difficulty. I mainly did the game with my six year old in mind but at the end of the jam I found out that really tricky puzzles could be created with my mechanics so perhaps I'll trow in a bunch of harder levels in an update if people like the game.