My tablet uses a large amount of mobile data

Automatic mobile data usage is turned on

Turn off automatic use of mobile data.

1 of 10 steps Slide your finger downwards starting from the top of the screen.
2 of 10 steps Press the settings icon.
3 of 10 steps Press Connections.
4 of 10 steps Press Wi-Fi.
5 of 10 steps Press the indicator to turn on the function.
6 of 10 steps Press the menu icon.
7 of 10 steps Press Advanced.
8 of 10 steps Press the indicator next to "Switch to mobile data" to turn the function on or off.
9 of 10 steps Press the Home key to return to the home screen.