Looks like i'm a right whiz at math! Hehe
Actually i just got really lucky, but don't tell anyone.
Got me a second to actually understand what was going on, but when i got it it was on. The premise is quite simple- make the tally get only a one, by any means necessary. And those means are m a t h s.
Dog gammit i suck at maths, apparently. The music and the timer do have quite an effect on you, though, and the whole thing feels actually quite tense, and that makes you fail a lot, which can get really funny. Maybe i'm just sleepy, though it probably was the music.
You can get really screwed by RNG, i tell you that! Specially with multiple "*"s.
One thing i'd add is to make numbers you don't use stay in the bar. It would add a little bit of strategy (saving those -1s and 1s, forcing you to lose points and moves to have to get rid of numbers that you don't want, etc!) and maybe let you see the next addition, therefore having to plan ahead your moves. Though maybe you actually wanted to make it like this and that's ok, as it is certainly tougher!
Quite tense math fun. Pretty good!