A cuboid wooden box is 1.5 meters long, 0.8 meters wide, and 0.6 meters high. At least how many square meters of wood will be used to make this wooden box?
一个长方体木箱，长1.5米，宽0.8米，高0.6米．做这个木箱至少要用多少平方米木板？
<gadget id="calculator">1.5 * 0.8</gadget>
<output>1.2</output>

<gadget id="calculator">1.5 * 0.6</gadget>
<output>0.9</output>

<gadget id="calculator">0.8 * 0.6</gadget>
<output>0.48</output>

<gadget id="calculator">1.2 + 0.9 + 0.48</gadget>
<output>2.58</output>

<gadget id="calculator">2.58 * 2</gadget>
<output>5.16</output>

<result>5.16</result>