Could do with a numbers course in Finnish.
Had a look through the Finnish language course and can't find anything to help learn numbers, unless I'm missing something, I think it would be useful to have.
They are scattered around the course, but if you want to practice those specifically, I recommend starting with the skill named O'Clock. It goes through all the numbers learnt previously (1-10) and introduces two more (11 and 12). How to use the word miljoona, "million" is taught in the skill City. The hundreds can be learnt in Shopping. Numbers 13-99 are not taught in the current version of the course and neither are the thousands. :)