$ sudo apt-get remove kalgebramobile 

Uninstall kalgebramobile including dependent package

If you would like to remove kalgebramobile and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove kalgebramobile 

Use Purging kalgebramobile

If you use with purge options to kalgebramobile package all the configuration and dependent packages will be removed.

$ sudo apt-get purge kalgebramobile 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove kalgebramobile 

See Also,