The school cafeteria uses 24 kg of rice every day. How many kilograms of rice will be used in one month (30 days)?
学校食堂每天要用大米24千克．一个月(30天)一共要用大米多少千克？
<gadget id="calculator">24 * 30</gadget>
<output>720</output>

<result>720</result>