While the concept is very interesting, and it's pretty satisfying to get to a close number, I'm not very math minded and it was harder with the timer to get a damaging score
If ever you'd like to expand on this, I think keeping the timer would work, but I think letting the number goal ranges be larger so that being within ><=30 of it or something like that could still count
but still, the art style is sleek and clean, and the sounds had the beginnings of being even more satisfying