A cube box without a lid, the side length is 5 decimeters, how many square decimeters of cardboard is needed to make this box?
一个正方体无盖盒子，棱长是5分米，做这个盒子至少需要多少平方分米纸板？
<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<result>125</result>