[M&M Guy]

I was always taught to use one-handed reporting in HS, while stating the individual digits as they're shown (one, three; not thirteen).

In NCAA-W we use two-handed reporting, and we have been told to say the number (thirteen, forty-two), since we are showing both digits at the same time.

I guess, as always, your mileage may vary based on the preferences of the powers-that-be in your area. For some, this is a big deal. For others, they may not care about how you report the number to the table, but they will make a big deal about exactly where you stand during a FT.

Either way, be careful which finger you use when signaling a one.