A construction site uses 4 cars to transport slag, and each car can transport 60 tons per day. In order to speed up the progress of the project, 6 more cars of the same kind are added. How many tons of slag can be transported per day now?
一个工地用4辆汽车运渣土，每辆汽车每天可运60吨，为了加快工程进度，增加了6辆同样的汽车，现在每天可运渣土多少吨？
<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">60 * 10</gadget>
<output>600</output>

<result>600</result>