If a cuboid has a surface area of 250 square decimeters, if it is equally divided into two equal cubes, how many square decimeters will its surface area increase?
一个长方体的表面积是250平方分米，把它平均分成两个相等的正方体，它的表面积增加了多少平方分米．
<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>

<result>50</result>