The Calculator App has been around since 2008. Over the years, the application has been given a more modernized look. But some users didn’t know about certain features.

First off, if you put in the wrong numbers, you can’t delete the numbers one at a time. The Calculator app resets to square one if you enter an incorrect number.

Thankfully, that’s not the case. All you have to do to remove the most recent number you entered is sliding your finger to the right or left across the display.

You can perform this action many times if needed.

Second, if you flip your phone to the side, the calculator will expand to a scientific calculator.

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