There is a trapezoidal wheat field with an upper base of 28m, a lower base of 32m and a height of 20m. In this field, an average of 2 kilograms of wheat is harvested per square meter. How many kilograms of wheat are harvested in total?
有一块梯形麦田，上底28m，下底32m，高20m．在这块田里平均每方米收小麦2千克，共收小麦多少千克？
<gadget id="calculator">28 + 32</gadget>
<output>60</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">60 * 10</gadget>
<output>600</output>

<gadget id="calculator">2 * 600</gadget>
<output>1_200</output>

<result>1_200</result>