Do you ever type numbers into your iPhone calculator and accidentally hit the wrong number? You have to start all over, right? That was until you knew about this hack.

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I am an avid iPhone user, and I am constantly learning new features about the phones. This one in particular has to do with the calculator app that comes on the phone. First off, do you remember when back in the day when your math teacher would always make you show your work because you "won't always have a calculator on hand"? The joke's on them, right?

Okay, just wanted to get that out...

Anyway, there is a feature on your iPhone calculator that allows you to simply backspace rather than delete the entire number/equation and start from scratch. It's easy to use, and I bet you didn't even know it was an option. Check it out: