Last year, Zhongying Village built two canals with a total length of 604 meters. The length of the canals built this year is three times that of last year. How much more meters will be repaired this year than last year?
中营村去年修了2条水渠，总长604米，今年修的水渠长度是去年的3倍．今年比去年多修多少米？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">604 * 2</gadget>
<output>1_208</output>

<result>1_208</result>