Four canals were built in Laowutun this year, with a total length of 1,608 meters, three times that of last year. How much more meters will be repaired this year than last year?
老五屯今年修了4条水渠，总长1608米，等于去年修的3倍．今年比去年多修多少米？
<gadget id="calculator">1_608 / 3</gadget>
<output>536</output>

<gadget id="calculator">1_608 - 536</gadget>
<output>1_072</output>

<result>1_072</result>