The stock iOS calculator has several tricks up its sleeve - Android

So there you with your iPhone and a ton of papers in front of you. It's time for you to do the taxes and you're relying on the stock iOS calculator to add up a long column of numbers. So you type in the first 30 figures and UH OH. You've entered the wrong number and the iOS calculator doesn't have a back button. So you have to start all over from the beginning, right? Wrong.

As it turns out, there is a way to correct an errant entry. Some of you already know what to do, but if you've just moved over to iOS from Android (possibly after purchasing the second-generation ...