Step by step. Marking college entrance examination papers is a very serious matter. Mathematics problems in Tianjin college entrance examination are graded according to the steps of solving problems. Every correct step will get the corresponding score, and the same wrong answer will be deducted the corresponding score. The answers to the mathematics test questions in Tianjin college entrance examination are graded according to the steps and results, that is to say, the steps are right, the steps are all right, the answers are right, full marks are given, the steps are incomplete, the answers are right, and the points are appropriately reduced. The steps are wrong, and the answers are not scored.