The school shipped 850 kilograms of rice, 3 trucks and 100 kilograms left. How many kilograms per car on average?
学校运来大米850千克，运了3车，还剩100千克．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>