The road construction team built a village road, and built 500 meters on the first day, which was 50 meters longer (1/2) than the second day. How many meters were repaired the next day?
修路队修一条村道，第一天修了500米，比第二天修的(1/2)多50米．第二天修了多少米？
<gadget id="calculator">500 - 50</gadget>
<output>450</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">450 / (1/2)</gadget>
<output>900</output>

<result>900</result>