A trapezoidal wheat field is 48 meters long at the top, 52 meters long at the bottom, and 20 meters high. This field harvests a total of 8,250 kilograms of wheat. How many kilograms of wheat is produced on average per square meter?
一块梯形麦地上底长48米，下底长52米，高20米，这块地共收小麦8250千克，平均每平方米产小麦多少千克？
<gadget id="calculator">48 + 52</gadget>
<output>100</output>

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

<gadget id="calculator">100 * 10</gadget>
<output>1_000</output>

<gadget id="calculator">8_250 / 1_000</gadget>
<output>33/4 = around 8.25</output>

<result>33/4 = around 8.25</result>