A cuboid tank without a cover is 2 meters long, 8 decimeters wide, and 6 decimeters high. How many square decimeters of iron sheets are needed to make this water tank?
一个无盖的长方体水箱，长2米，宽8分米，高6分米．做成这个水箱需要铁皮多少平方分米？
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">20 * 6 * 2</gadget>
<output>240</output>

<gadget id="calculator">8 * 6 * 2</gadget>
<output>96</output>

<gadget id="calculator">160 + 240 + 96</gadget>
<output>496</output>

<result>496</result>