The kindergarten ships 6 boxes of fruit every day, each box weighs 5 kilograms. Calculated as 21 days in a month, how many kilograms of fruits are shipped in total in a month?
幼儿园每天运来水果6箱，每箱5千克．一个月按21天计算，一个月共运来水果多少千克？
<gadget id="calculator">5 * 6 * 21</gadget>
<output>630</output>

<result>630</result>