Pour a tank of oil from a cube fuel tank with a side length of 4dm into another cuboid fuel tank with a length of 8dm and a width of 2dm, and it is just full. How many square decimeters of iron sheet should be used to make this cuboid fuel tank?
把棱长4dm的正方体油箱里的一箱油，倒入另一个长8dm，宽2dm的长方体油箱，刚好倒满，做这个长方体油箱至少要用多少平方分米的铁皮？
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">4 / 16</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 * 4 * 4 * (1/4)</gadget>
<output>32</output>

<gadget id="calculator">2 * 4 * 4 * (1/4)</gadget>
<output>8</output>

<gadget id="calculator">16 + 32 + 8</gadget>
<output>56</output>

<gadget id="calculator">56 * 2</gadget>
<output>112</output>

<result>112</result>