Keypads; Using The Embedded Numeric Keypad - HP Compaq Presario,Presario V2000 Hardware And Software Manual

Keyboard and Touchpad

Keypads

You can do keypad work with your notebook by using the
embedded numeric keypad in the notebook keyboard or by
connecting an optional external numeric keypad.
The embedded numeric keypad cannot be used while an external
keypad is connected to the notebook.

Using the Embedded Numeric Keypad

The embedded numeric keypad consists of 15 keys that can be
used like the keys on an external numeric keypad. When the
embedded numeric keypad is turned on, each keypad key
performs the functions indicated by the icon in the upper-right
corner of the key.
2–14 Hardware and Software Guide