A road with a length of 685 meters is built, and an average of 55 meters is repaired every day. After a week of repairs, how many meters are left to be repaired?
修一条长685米的公路，平均每天修55米，修了一周后，还剩多少米没有修？
<gadget id="calculator">55 * 7</gadget>
<output>385</output>

<gadget id="calculator">685 - 385</gadget>
<output>300</output>

<result>300</result>