A trapezoidal field, the upper base is 22 meters, the lower base is 8 meters, and the height is 6 meters. Wheat is grown in this land. If the harvest of wheat per square meter is 2 kg, how many kg of wheat will be harvested in this land?
一块梯形地，上底是22米，下底是8米，高是6米，在这块地里种小麦，如果每平方米收小麦2千克，这块地共收小麦多少千克？
<gadget id="calculator">22 + 8</gadget>
<output>30</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">30 * 3 * 2</gadget>
<output>180</output>

<result>180</result>