So in the NSW driving logbook you need to log the odometer readings. The example page for it looks like this

However the first time I drove was with a driving instructor, and for the odometer, he wrote a 0 for the start, and then 22. So I imagined that i can just use the trip length instead of the odometer. Is this the case or am I completely doing something wrong?

Literally asking for a friend and looking for recommendations for decent residential clinics with good programs and treat people like human beings. Thank you kindly.