The bottom of a goldfish tank is 8cm long, and it is filled with 6cm deep water. After putting a coral stone, the water surface rises to 8cm. What is the volume of this coral stone?
一个金鱼缸的底面棱长都是8cm，装有6cm深的水，放入一块珊瑚石后水面上升到8cm，这块珊瑚石的体积是多少？
<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">8 * 8 * 2</gadget>
<output>128</output>

<result>128</result>