The simplest mathematical operations: addition, subtraction, multiplication, and division. This is a simplified version of the online calculator.
You can get the full version here: Online Calculator
You can use both the numeric keys at the top of the keyboard and the numeric keypad on the right.
To enter [ = ] - press the [Enter] key.
To erase the last character - press the [Backspace] key.
To enter [ + ] - press [ + ] at the top or on the numeric keypad.
To enter [ - ] - press [ - ] at the top or on the numeric keypad.
To enter [ ? ] (multiplication) - press [ * ] on the numeric keypad.
To enter [ ? ] (division) - press [ / ] on the numeric keypad.
To reset the calculator - press [Esc] or [Del] on the main keyboard, or [End] on the numeric keypad.