8 small cubes with side lengths of 0.2 decimeters are used to form a large cube. What is the volume of the large cube in cubic decimeters?
用8个棱长0.2分米的小正方体拼成一个大正方体，拼成的大正方体的体积是多少立方分米．
<gadget id="calculator">2 * 0.2</gadget>
<output>0.4</output>

<gadget id="calculator">0.4 ** 3</gadget>
<output>0.064</output>

<result>0.064</result>