Adding to death toll

The death toll in California’s ballroom bloodbath rose to 11 on Monday when a wounded victim succumbed to their injuries, authorities said.

The tragic development came as it surfaced that Ming Wei Ma, a dance instructor at Star Dance Studio where the shooting occurred, was killed while apparently heroically trying to stop the shooter Huu Can Tran, his grieving pals said.

“He was the first to rush the shooter,” Ma’s friend, Eric Chen, told CBS News. “He was just caring.”

David DuVal, who taught ballroom at Star Dance, told The Post that Ma was among the first people killed because he was standing near the entrance of the large ballroom.

Two women — My Nhan, 65, and Lilan Li, 63 — also were identified as slain victims of Tran’s rampage.

The madman later killed himself in a standoff with police in nearby Torrance.

Nhan’s family, who called her Mymy, said in a Twitter post: “She spent so many years going to the dance studio [. . .] unfairly, Saturday was her last dance.