The fruit shop shipped 50 boxes of apples and 50 oranges each, each containing 22 kg of apples and 28 kg of oranges. How many kilograms are apples less than oranges?
水果店运来苹果和桔子各50箱，每箱苹果22千克，每箱桔子28千克．苹果比桔子少多少千克？
<gadget id="calculator">28 - 22</gadget>
<output>6</output>

<gadget id="calculator">6 * 50</gadget>
<output>300</output>

<result>300</result>