The factory needs to process 450 parts, 360 of which have been processed, and the rest are planned to be completed within 6 days. How many parts should be processed on average per day?
工厂要加工450个零件，已经加工了360个，余下的计划在6天内完成．平均每天应加工零件多少个？
<gadget id="calculator">450 - 360</gadget>
<output>90</output>

<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<result>15</result>