The road construction team wants to build a road, 210 meters a day. After a week of repairs, there are 530 meters left to be completed. How long is this road?
修路队要修一条公路，每天修210米，修了一周后，还剩530米没修完，这条公路长多少米？
<gadget id="calculator">210 * 7</gadget>
<output>1_470</output>

<gadget id="calculator">1_470 + 530</gadget>
<output>2_000</output>

<result>2_000</result>