组三推算方法和口诀

简介：After driving along the winding road for nearly an hour, the group finally returned to Qingyun Village. The road in the mountains was more rugged and difficult to drive than the highway, and the truck could not get up at all. So when the truck arrived at the entrance of the village, Lu Tao simply called Everyone got out of the car and called the brothers in the village to come out and carry supplies.