Lenovo B485 Notebook - Manual (Page 32)

Using the keyboard
Your computer has a numeric keypad and function keys incorporated in its standard keyboard.
Numeric keypad
Depending on your model, your computer might come with a separate numeric keypad or function keys
that could work as a numeric keypad.
B480 and B485
The keyboard has keys that can work as a 10-key numeric keypad when enabled. To enable or disable the
keypad, press Fn+F8.
B580
The keyboard has a separate numeric keypad. To enable or disable the keypad, press the numeric lock
key (NmLk).
Note: The numeric lock indicator is on when the numeric keypad is enabled.
16 User Guide