We've got special suffixes for those numbers. -to for example makes a number take the place of the hundred, so sed (three) with -to would become sedto, 300. 301 would be sedto gein, and you could continue counting that way.

Some more examples and details can be found here, and there is a shining new Memrise course for the numbers here.

thanks, I'll be sure to check that course out

I've just been wondering, there are translations for numbers 1-10 but how would we translate numbers above that?