[cjm42]

If I type "3 + 6 + 9" as fast as I can, then hit "=", I only get 18 about half the time. Sometimes I get 12, sometimes 15, occasionally something else. This is with a iPhone 11 Pro on iOS 14.4.2. It's ridiculous. I always hear the same number of clicks, though.

[wlesieutre]

I must have never run into this because I don't calculate fast enough, but I just tried it and confirmed it really happens.

Somehow got the "6" key is stuck lit up, and despite having definitely registered a tap, it wasn't included in the addition.

https://i.imgur.com/onkcv59.png

[amilios]

That is extremely strange. Weighing in from an iPhone XS here on the latest iOS, I cannot understand how it is humanly possible to type the numbers fast enough they aren't picked up. I just tried to do it, pressing 3+6+9= as fast as I could, and I could not manage to get it to not detect my taps. I wonder if you have a defective screen? I have no other explanation

[FqOD4xih7Uq6m9Z]

Just tested this a few times on an XS Max 14.4.2 and got 18 every time.