A machine factory plans to complete 10,800 machine tools in 30 days. Due to improved technology, it manufactures 180 more machines per day than originally planned. In this way, the task can be completed a few days earlier?
某机器厂计划30天里完成10800台机床，由于改进技术，每天比原计划多制造180台，这样可以提前几天完成任务？
<gadget id="calculator">10_800 / 30</gadget>
<output>360</output>

<gadget id="calculator">360 + 180</gadget>
<output>540</output>

<gadget id="calculator">10_800 / 540</gadget>
<output>20</output>

<gadget id="calculator">30 - 20</gadget>
<output>10</output>

<result>10</result>