In a cube container with a side length of 10 cm, pour water to a depth of 5 cm, put an iron block into the water, sink completely, and the water surface rises to 7 cm, what is the volume of the iron block in cubic centimeters?
在一个棱长为10厘米的正方体容器，注入深5厘米的水，把一个铁块放入水中，完全沉没，水面上升到7厘米，铁块的体积是多少立方厘米？
<gadget id="calculator">7 - 5</gadget>
<output>2</output>

<gadget id="calculator">10 * 10 * 2</gadget>
<output>200</output>

<result>200</result>