This is a calculator app I created as a simple project :)

How to Use:

> Tap upper left corner on the screen (Above the 7 button) to Clear All / Reset.

> Tap upper right corner on the screen (Above the 9 button) to Delete one digit at a time.

> Press Upper right button to Clear last entry if an Operator is used, press again to Clear All / Reset.

> Press Lower right button to display final result "equal to ="