The engineering team wants to build a 1-kilometer road, and it has already built 475 meters. If it repairs 25 meters a day, how many days will it take to finish it?
工程队要修一条1千米的马路，已经修了475米，如果每天修25米，还要几天才能修完？
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 - 475</gadget>
<output>525</output>

<gadget id="calculator">525 / 25</gadget>
<output>21</output>

<result>21</result>