There is a cuboid aquarium with a length of 12m, a width of 8m, and a depth of 2.5m. A layer of cement should be applied on each surface of the aquarium to prevent water seepage. If 5kg of cement is used per square meter, how many kilograms of cement is needed in total?
有一个长12m，宽8m，深2.5m的长方体养鱼池，要在养鱼池每个面上抹一层水泥防止渗水，如果每平方米用水泥5kg，一共需要多少千克水泥？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 2.5</gadget>
<output>30</output>

<gadget id="calculator">8 * 2.5</gadget>
<output>20</output>

<gadget id="calculator">96 + 30 + 20</gadget>
<output>146</output>

<gadget id="calculator">146 * 2</gadget>
<output>292</output>

<gadget id="calculator">292 - 96</gadget>
<output>196</output>

<gadget id="calculator">196 * 5</gadget>
<output>980</output>

<result>980</result>