If a 5 decimeter cube is sawed into two identical cubes, the surface area will be increased by how many square decimeters.
把一个5分米正方体木块锯成两个完全一样的正方体，表面积比原来增加了多少平方分米．
<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>

<result>50</result>