Samsung NV30CH0Q0B - Manual (Page 22)

Getting Started 9
Do not allow liquid to drip into the keyboard or you may damage the keyboard.
Using the Numeric Keypad
Your keyboard includes a numeric keypad, which is a group of keys that you can set to
type numbers and mathematical symbols, such as the plus sign. A number or symbol
on the corner of each keypad key shows its numeric function.
Press <Fn+Num Lock> to turn on the embedded numeric keypad. The numeric
functions of the keypad are enabled and the Num Lock LED turns on. (See ”Reading
the Status Indicators” on page 17 for the location of the Num Lock LED.)
While the numeric functions are enabled, you can temporarily return a key to its normal
function by pressing the key and the <Fn> key. For example to type the letter m, press
<Fn+M>, this operation displays the letter m.
To turn the numeric keypad off, press <Fn+Num Lock> again. The Num Lock LED
turns off.
Num Lock LED