65,438+040 yuan is the price of shoes, which is the 70 yuan of 35×2+ customers.
Pay attention to the relationship between Master Wang and his neighbors, because the neighbors gave Master Wang 100 yuan, and Master Wang also gave his neighbors 100 yuan.
Note that the customer took the money paid by Master Wang, and the customer took the shoes worth 35×2=70 yuan and the 70 yuan given to him by Master Wang.