A 10 digit calculator with 4 operations and a large number pad.
To conserve space the "+" and "-" are on the same button, which you can switch between by tapping twice.
To conserve space there is no "=" button, but you can get the same effect by tapping "+".
To add a decimal, tap the decimal (".") on the top right.
Made with Love! Donations welcome! https://www.paypal.me/terryyuen/1.99usd