Kanji has 2 different ways to be read. The onyomi (Chinese "sound reading") and Kunyomi. In this case ちょう is the Onyomi of 町. Onyomi is used when the kanji is just by itself without hiragana beside it. And Kunyomi (まち) is used when there is hiragana with it such as 古い町. But this isn't always the case, you'll just have to keep studying and learn as you go. Kanji is a difficult subject but I hope this helped :)
June 10, 2014 at 1:29am