When writing out numbers, I've seen novels especially writing in weird formats. For example:
19- 一九
10- 一〇
- 19- 一九
- 10- 一〇
I am assuming pronounciationpronunciation wise, it is really じゅうきゅう and じゅう respectively. What's the motivation in using such a format rather than 十九 or 十. Is this the preferred way of writing when it comes to novels?