Verb conjugation of "berechnen" in German

I congratulate you on your move to become a private Spanish teacher. People need to believe in you and the most important thing is that you need to believe in yourself. It won't be easy at the beginning.
Anyway, once we arrived at the guest house the rules were explained: Washing my Jeans would be 2 dollars, a pair of socks 1 dollar and so on. I did not feel comfortable with these people.
We arrived at the next hotel, which was only two blocks away, again deciding from the outside, that we would not sleep there. I questioned the short ride, because on the map the two places were far apart.