Michae030107, we know this! :)
We are trying to answer "Five, six, seven" but the problem described occurs when tries to use a microphone and Duolingo's speech recognition feature to practice pronunciation. If one said the words with a normal pause between numbers, it was interpreting that speech as if one had spelled out a word. Duolingo was ignoring the pauses even if we waited a few seconds between words.
There is a lot of advice on how to type from people who don't understand the question.
What is "ine"? You can type ü on some computers by holding down "Alt"-key and typing "0252" but for some reason the numbers must be typed on the numeric keypad. Also Duolingo's screen should be showing you a "ü" button (unless your Caps lock is on or you are holding down the shift key) under the textbox you are typing into. Everytime you click that button, it should insert a "ü". (There are a few other buttons with other special characters).
I keep typing the german words when they give me the german words. I don't think about it, it feels like I'm doing it right because I know what it means. I hear it and then I type it out in german. And ironically when they speaks something out in german and ask me to repeat it, i translate it when they do not ask for a translation. These are the majority of my errors.