Originally Posted by
T-Rob I'm not so sure that the calculator thing is a bug. I just played with it a bit and noticed that after hitting 2, that the + didn't work initially and that is what caused it to come up with 24. I went back a couple of times and ensured the + worked (had to double click it a couple of times) and the math came out correct.
It is a bug. For some reason, the app adds a small animation to each operator key, and the mistake is that it there is a short duration delay which keeps you from pressing the same operator key within that delay. As you noticed, if you enter "1 + 2 + 3" slowly, it will answer the appropriate 6.