Uncle Li processes a batch of parts from 8:00 am to 2:00 pm, with an average of 60 parts processed per hour, and there are still 50 parts left unfinished. How many parts are there in this batch?
李叔叔加工一批零件，从上午8：00一直做到下午2：00，平均每小时加工60个，还剩下50个没完成，这批零件共有多少个？
<gadget id="calculator">60 * 6</gadget>
<output>360</output>

<gadget id="calculator">360 + 50</gadget>
<output>410</output>

<result>410</result>