There are 28 boxes of apples, each weighing 20 kg. 5 yuan per kilogram of apples. How much do these apples sell for in total?
有28箱苹果，每箱20千克．每千克苹果5元钱．这些苹果一共能卖多少钱？
<gadget id="calculator">28 * 20 * 5</gadget>
<output>2_800</output>

<result>2_800</result>