It turns out we've been using our iPhone calculator for years without knowing everything it can do! Student Jazz Johnson has schooled the Internet on one function we've all been missing and it's pretty useful. Watch our video to learn more!
You can delete numbers you've already typed in by simply sliding your finger across the screen. No need to start again every time you make a mistake! It's no surprise it's got the Internet buzzing.
Check out the video above to see how this trick works for yourself!