vegetable field is 12 meters long and 8 meters wide, and 30 kilograms of vegetables are harvested per square meter. How many kilograms of vegetables are harvested in this vegetable field?
一块菜地长12米，宽8米，每平方米收菜30千克，这块菜地共收菜多少千克？
<gadget id="calculator">12 * 8 * 30</gadget>
<output>2_880</output>

<result>2_880</result>