A 10-meter-long cuboid is divided into two identical small cuboids, and the surface area is increased by 12 square decimeters. What is the original volume of this piece of wood?
把一块长10米的长方体木材据成了完全相同的两块小长方体，表面积增加了12平方分米，这根木材原来体积是多少立方米？
<gadget id="calculator">0.12 / 2</gadget>
<output>0.06</output>

<gadget id="calculator">0.06 * 10</gadget>
<output>0.6</output>

<result>0.6</result>