A cuboid stone is 2 meters long, has a cross-sectional area of 4 square decimeters, and weighs 2.7 kilograms per cubic decimeter. How much does this stone weigh in kilograms?
一块长方体石料长2米，横截面面积是4平方分米，每立方分米石料重2.7千克．这块石料重多少千克？
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">20 * 4 * 2.7</gadget>
<output>216</output>

<result>216</result>