1)
Divrei ha'Yamim I, 9:6 taught about Bnei Zerach. Why was this omitted here?
1.
Malbim: Nechemyah had nothing to add about them. There it says that there were 690 from Peretz and Zerach together. Since 468 were Bnei Peretz, we infer that Bnei Zerach were 222.
