Two engineering teams dug a canal at the same time. Team A dug 130 meters a day, and team B dug 108 meters a day. After 80 days, the canal was opened. Do you know how long this canal is?
两个工程队同时开凿一条水渠，甲工程队每天挖130米，乙工程队每天挖108米，经过80天水渠开通，你知道这条水渠有多长吗？
<gadget id="calculator">130 + 108</gadget>
<output>238</output>

<gadget id="calculator">238 * 80</gadget>
<output>19_040</output>

<result>19_040</result>