There are 3,000 tons of cement in the building materials store. After 4 days of transportation, there are 600 tons left. How many tons are shipped on average per day?
建材商店有水泥3000吨，运了4天，还剩600吨，平均每天运多少吨？
<gadget id="calculator">3_000 - 600</gadget>
<output>2_400</output>

<gadget id="calculator">2_400 / 4</gadget>
<output>600</output>

<result>600</result>