Uncle Zhang’s house is decorated. The painting area of the living room is 196 square meters. The material cost per square meter is 45 yuan, and the labor cost is 20 yuan per square meter. How much did Uncle Zhang’s house spend on painting the living room?
张叔叔家装修房子，客厅的粉刷面积是196平方米，每平方米材料费45元，人工费每平方米20元，张叔叔家粉刷客厅一共花去多少元？
<gadget id="calculator">45 + 20</gadget>
<output>65</output>

<gadget id="calculator">65 * 196</gadget>
<output>12_740</output>

<result>12_740</result>