Board Thread:Legitimate Canon Questions/@comment-27797855-20160214184244/@comment-4091815-20160214185549

Malia was not considered a Hale. She was adopted very soon after her birth.

You seem to have the numbers correct as presented on screen. There is no firm explanation for the descrepancy between Derek's memory of events and the official report. He was counting Cora and may well have been counting another family memeber but we just don't know.