Yes! I first had this question as a spoken-only question also. Guessing is fun! Unless it is a little frustrating. But I find that I (and all my students) learn better through guessing, just as toddlers learn. Duolingo does not do this too often, but once in a while, it can be fun. And I sure won't forget how "Der Bereich" is spelled after writing this reply and musing about your question. Thank you!
Sometimes Raum can be used to mean Bereich, but often it means something else. http://dictionnaire.reverso.net/allemand-anglais/Raum