swimming pool is going to build a new swimming pool, the swimming pool is 80 meters long, 60 meters wide, and 2.5 meters deep. How many square meters of tiles need to be tiled around and at the bottom of the swimming pool now?
某游泳馆要新建一个游泳池，该游泳池长80米，宽60米，深2.5米．现在要在游泳池的四周和底部贴是瓷砖，一共需要贴多少平方米的瓷砖？
<gadget id="calculator">80 * 60</gadget>
<output>4_800</output>

<gadget id="calculator">80 * 2.5 * 2</gadget>
<output>400</output>

<gadget id="calculator">60 * 2.5 * 2</gadget>
<output>300</output>

<gadget id="calculator">4_800 + 400 + 300</gadget>
<output>5_500</output>

<result>5_500</result>