Is there ways to just say what is 5 times 5 and it will give the answer. If there is. how do i install it

if you search the forum for "Math" you will find multiple examples, you will need to use the the python plugin.

how to use XML found on the forum: http://voxcommando.com/mediawiki/index.php?title=XML_on_the_forum

I know how to import xml to the voicecommands.xml. But where can i get the correct xml to import. And do i have to import it to python plugin settings or voicecommands.xml

Search the Forum for "Math" and you will find post about how to do  math in VC, those post should explain how to use there method

Cant find it. There is just bug reports for me.

It will help if you know how to perform searches on internet forums.  The vast majority of forums work the same way.  In our case we are using an SMF (Simple Machines) Forum.

http://wiki.simplemachines.org/smf/Search

There is also a custom search tool on the wiki that searches both the wiki and the forum.  This is often the best method to use.
http://voxcommando.com/mediawiki/index.php?title=Main_Page

Sometimes you will need to look beyond the first result returned by the search to find the one appropriate to your needs.

Go it working