Lenovo G510s Touch Notebook - Manual (Page 8)

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Chapter 1. Getting to know your computer
„
Using the keyboard
Your computer has number keys and function keys and may also have a
numeric keypad (G510s Touch only) incorporated into its standard keyboard.
Numeric keypad
G510s Touch
The keyboard has a separate numeric keypad. To enable or disable the
numeric keypad, press the Num Lock key.