This english-german audiotrainer helps you effectively learn basic vocabulary that is useful for everyday life and improve your pronunciation. the 100 lessons are based on levels a1 and a2 within. The audiotrainer is a joint cooperation between deutsche welle and the goethe verlag. with our english-german audio tutor in 100 lessons you can effectively learn basic vocabulary and improve your pronunciation.. With numbers over 20, the single digit comes first, and then the multiple of ten.there are two special features to note: the number eins loses the -s when it is combined with a ten.; there is an und between the single digit and the multiple of ten..