There are 472 tons of cement in the building materials store, and after 4 days of transportation, there are still 128 tons left. How many tons are shipped on average per day?
建材商店有水泥472吨，运了4天后还剩下128吨，平均每天运多少吨？
<gadget id="calculator">472 - 128</gadget>
<output>344</output>

<gadget id="calculator">344 / 4</gadget>
<output>86</output>

<result>86</result>