Dig a pit with a length of 2.5m, a width of 0.8m, and a depth of 1.2m, how much earth is dug out?
挖一个长2.5m，宽0.8m，深1.2m的坑，挖出多少方土．
<gadget id="calculator">2.5 * 0.8 * 1.2</gadget>
<output>2.4</output>

<result>2.4</result>