The school cafeteria buys 5 bags of rice, each bag is 50 kilograms, and each kilogram costs 2 yuan. How much does it cost in total?
学校食堂买回5袋大米，每袋50千克，每千克2元，一共需要多少钱？
<gadget id="calculator">5 * 50 * 2</gadget>
<output>500</output>

<result>500</result>