A cube of wood has a surface area of 30 square decimeters. If it is divided into 8 small cubes of the same size, what is the surface area of each small cube?
一个正方体木块，表面积是30平方分米，如果把它据成大小一样的8个小正方体木块，每个小木块的表面积是多少？
<gadget id="calculator">30 / 6 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) * 6</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>