If a cube of wood with side length 5 decimeters is sawn into two identical cuboids, how many square decimeters will the total surface area increase?
把一根棱长5分米的正方体木料锯成2个相同的长方体，表面积一共增加了多少平方分米．
<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>

<result>50</result>