A train has 12 carriages, 6 carriages each have 120 seats, and the other 6 carriages each have 130 seats. How many seats does this train have?
一列火车挂了12节车厢，其中6节各有120个座位，另外6节各有130个座位，这列火车一共有多少个座位？
<gadget id="calculator">120 * 6</gadget>
<output>720</output>

<gadget id="calculator">130 * 6</gadget>
<output>780</output>

<gadget id="calculator">720 + 780</gadget>
<output>1_500</output>

<result>1_500</result>