A classroom is 8.6 meters long, 6.5 meters wide, and 4 meters high. The ceiling and surrounding walls of the classroom need to be painted, and the area of doors and windows is 24 square meters. How many square meters is the area to be painted?
一间教室长8.6米，宽6.5米，高4米，要粉刷教室的顶棚和四周墙壁，除去门窗面积24平方米．要粉刷的面积是多少平方米？
<gadget id="calculator">8.6 * 6.5</gadget>
<output>55.9</output>

<gadget id="calculator">8.6 * 4</gadget>
<output>34.4</output>

<gadget id="calculator">6.5 * 4</gadget>
<output>26</output>

<gadget id="calculator">34.4 + 26</gadget>
<output>60.4</output>

<gadget id="calculator">60.4 * 2</gadget>
<output>120.8</output>

<gadget id="calculator">120.8 - 24</gadget>
<output>96.8</output>

<gadget id="calculator">55.9 + 96.8</gadget>
<output>152.7</output>

<result>152.7</result>