On a keyboard the times button has the symbol "*" printed on it, this is usually found as upper case "8" but there may also be a "*" present on the numeric keypad section of your keyboard, if your keyboard has this.
It is a keyboard, not a keybored ! There is no square root button on a standard keyboard, but if you are bored, you can find out how to program a key and get one of the keys to be your square root key.
Check if is a complete railroad, put the depot, chick the RMB (Right Mouse Button), press the button with a locomovite and a wand, make what ever you like and press the button with an green checkmark on it and tada you got a train!
To copy text using the keyboard, you need to hit two letters at once. Typically this is the control button and the letter C button on Windows. On a Mac It would be the Command button and the letter C button at the same time.