According to statistics, every mid-range restaurant in the country uses 258 pairs of disposable chopsticks every day, how many pairs of disposable chopsticks are used in one month (30 days).
据统计，全国每个中档饭店每天要用258双一次性筷子，一个月(30天)要用多少双一次性筷子．
<gadget id="calculator">258 * 30</gadget>
<output>7_740</output>

<result>7_740</result>