The wall on the right side of the classroom is 8 meters long and 4 meters wide. There are 2 windows on this wall, and the area of each window is 5 square meters. Now this wall is going to be painted, how many square meters is the area to be painted?
教室右面的墙壁长是8米，宽是4米．该面墙上有2扇窗户，每扇窗户的面积是5平方米．现在要粉刷这面墙，要粉刷的面积是多少平方米？
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">32 - 10</gadget>
<output>22</output>

<result>22</result>