To uninstall education-mathematics just follow these instructions.
sudo apt-get remove education-mathematics
This will remove just the education-mathematics package itself.
sudo apt-get remove --auto-remove education-mathematics
This will remove the education-mathematics package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for education-mathematics then this will work.
sudo apt-get purge education-mathematics
Or similarly, like this education-mathematics
sudo apt-get purge --auto-remove education-mathematics
|Maintainer||Debian Edu Developers <firstname.lastname@example.org>|
|Description||Debian Edu mathematical applications|