A swimming pool is 100 meters long, 80 meters wide, and 5 meters deep. Now the surrounding area and the bottom surface are plastered with cement. How many square meters is the area covered with cement?
一个游泳池长100米，宽80米，深5米，现在四周及底面抹上水泥，抹水泥的面积是多少平方米？
<gadget id="calculator">100 * 80</gadget>
<output>8_000</output>

<gadget id="calculator">100 * 5 * 2</gadget>
<output>1_000</output>

<gadget id="calculator">80 * 5 * 2</gadget>
<output>800</output>

<gadget id="calculator">8_000 + 1_000 + 800</gadget>
<output>9_800</output>

<result>9_800</result>