Use backspace on the Calculator of your iPhone
If you are someone who spend a lot of time on iPhone Calculator app, you must be feeling defeated of mistyping a digit and then having to start the calculation all over again. Here is the trick that can come handy for you
Hidden backspace function – means you won’t have to revert to the C or AC buttons every time you make a mistake.
Just swipe to the left or the right at the top of the screen, where the digits are displayed. The motion acts as a backspace command, and will remove the number you entered last.