Toshiba Satellite M50 (PSM53) - Manual (Page 106)

TOSHIBA M50 5-5
The Keyboard
Keypad overlay
Your computer's keyboard does not have an independent numeric keypad,
but its numeric keypad overlay functions like one.
The keys in the center of the keyboard with white letters make up the numeric
keypad overlay. The overlay provides the same functions as the numeric
keypad.
Turning on the overlays
The numeric keypad overlay can be used for numeric data input or cursor
and page control.
Arrow mode
To turn on the Arrow mode, press Fn + F10 (Arrow mode indicator lights).
Now try cursor and page control using the keys shown in the disagram
below. Press Fn + F10 again to turn off the overlay.
Numeric mode
To turn on the Numeric mode, press Fn + F11 (Numeric mode indicator
lights). Now try numeric data entry using the keys below. Press Fn + F11
again to turn off the overlay.
The numeric keypad overlay (U.S.)