A new swimming pool is 50m long, twice as long as it is wide, and 2.4m deep. How many square meters of tiles are needed to paste tiles around and on the bottom of the swimming pool?
一个新建的游泳池长50m，长是宽的2倍，深2.4m．现在要在游泳池的四周和底面贴上瓷砖，一共需要贴多少平方米的瓷砖？
<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">50 * 25</gadget>
<output>1_250</output>

<gadget id="calculator">50 * 2.4 * 2</gadget>
<output>240</output>

<gadget id="calculator">25 * 2.4 * 2</gadget>
<output>120</output>

<gadget id="calculator">1_250 + 240 + 120</gadget>
<output>1_610</output>

<result>1_610</result>