$ sudo apt-get update
$ sudo apt-get install matchbox-keyboard-udeb 

matchbox-keyboard-udeb is installed in your system.

Make ensure the matchbox-keyboard-udeb package were installed using the commands given below,

$ sudo dpkg-query -l | grep matchbox-keyboard-udeb *

You will get with matchbox-keyboard-udeb package name, version, architecture and description in a table

matchbox-keyboard-udeb package basic information: