The engineering team wanted to rush to repair a 1,840-meter-long water canal. The master worker gave up the rest day to repair 160 meters a day in the first week, and the rest had to be completed in 4 days. How many meters does the rest have to repair on average every day?
工程队要抢修一条长1840米的水渠，工人师傅放弃休息日第一周每天修160米，余下的必须在4天完成．余下的平均每天要修多少米？
<gadget id="calculator">160 * 7</gadget>
<output>1_120</output>

<gadget id="calculator">1_840 - 1_120</gadget>
<output>720</output>

<gadget id="calculator">720 / 4</gadget>
<output>180</output>

<result>180</result>