The school cafeteria is going to ship 850 kg of flour, 3 trucks have already been shipped, and there is still 100 kg left to be shipped. How many kilograms per car on average?
学校食堂准备运来面粉850千克，已经运了3车，还剩100千克没有运．平均每车运多少千克？
<gadget id="calculator">850 - 100</gadget>
<output>750</output>

<gadget id="calculator">750 / 3</gadget>
<output>250</output>

<result>250</result>