Use iron sheets to make a cuboid iron box with a cover. The length of the iron box is 8dm, the width is 6dm, and the height is 5dm. How many square decimeters of iron sheet are needed to make this iron box?
用铁皮做一个有盖的长方体铁皮箱，铁皮箱长为8dm，宽为6dm，高为5dm，做这个铁皮箱至少需要多少平方分米的铁皮？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">48 + 30 + 40</gadget>
<output>118</output>

<gadget id="calculator">118 * 2</gadget>
<output>236</output>

<result>236</result>