Houston there’s a problem....... https://www.dropbox.com/s/i53deoymffk4tqb/Photo%20Aug%2027%2C%202%2030%2045%20PM.png?dl=0
On the answer: it doesn’t want to accept actual numbers; it wants words.
Hello Mariusz. Yes, I guess I could use only words next time instead of a numerical representation of said number. However, Duolingo would have to have that requirement across the board, so to speak, and as of now, they often allow/ approve for the translation to be entered in its numerical form.
Why is metrów apparently genitive here, though to usually takes the nominative?