new swimming pool is built in the fitness center. The length of the swimming pool is 60m, twice the width, and 2.5m deep. Now tiles are to be pasted around and on the bottom of the pool, how many square meters of tiles need to be pasted in total?
健身中心新建一个游泳池，该游泳池的长60m，是宽的2倍，深2.5m．现要在池的四周和底面都贴上瓷砖，共需要贴多少平方米的瓷砖？
<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<gadget id="calculator">60 * 30</gadget>
<output>1_800</output>

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

<gadget id="calculator">30 * 2.5 * 2</gadget>
<output>150</output>

<gadget id="calculator">1_800 + 300 + 150</gadget>
<output>2_250</output>

<result>2_250</result>