2、A pet shop has a total of 2012 fox dogs and Shih Tzus, among which there are 1110 female dogs, 1506 fox dogs, and 202 male Shih Tzus. How many female fox dogs are there?
【Analysis】There are $2012-1110=902$ male dogs, $902-202=700$ male fox terriers, and $1506-700=806$ female fox terriers.