A cuboid container. The length is 30cm, the width is 15cm, and the height is 10cm. After the container is filled with water, put an iron block into the container (completely submerged), some water overflows, and then take out the iron block. At this time, the height of the water surface in the container is 7cm. What is the volume of the iron block in cubic meters? centimeter?
一个长方体容器．长为30cm、宽为15cm、高为10cm．容器内装满水后，将一块铁块放人容器中(完全浸没)，有部分水溢出，再将铁块取出，这时容器中的水面高度是7cm，这块铁块的体积是多少立方厘米？
<gadget id="calculator">10 - 7</gadget>
<output>3</output>

<gadget id="calculator">30 * 15 * 3</gadget>
<output>1_350</output>

<result>1_350</result>