To build a road, 456 meters are built every day. After 23 days, there are still 250 meters left to be completed. How long is this road in meters?
修一条公路，每天修456米，修了23天后还剩250米没有完成，这条公路长多少米？
<gadget id="calculator">456 * 23</gadget>
<output>10_488</output>

<gadget id="calculator">10_488 + 250</gadget>
<output>10_738</output>

<result>10_738</result>