The school cafeteria brings in 30 bags of rice, 60 kilograms of rice per bag, and 600 kilograms of flour. How many kilograms more rice is brought in than flour?
学校食堂运进大米30袋，每袋大米60千克，运进面粉600千克，运进的大米比面粉多多少千克？
<gadget id="calculator">60 * 30</gadget>
<output>1_800</output>

<gadget id="calculator">1_800 - 600</gadget>
<output>1_200</output>

<result>1_200</result>