Uncle Li’s family collected 57 boxes of oranges and 38 boxes of apples. Each box of oranges weighed 25 kilograms, and each box of apples weighed 30 kilograms. How many kilograms more oranges did Uncle Li receive than apples?
李大爷家共收57箱桔子，38箱苹果，每箱桔子重25千克，每箱苹果30千克，李大爷收的桔子比苹果多多少千克？
<gadget id="calculator">25 * 57</gadget>
<output>1_425</output>

<gadget id="calculator">30 * 38</gadget>
<output>1_140</output>

<gadget id="calculator">1_425 - 1_140</gadget>
<output>285</output>

<result>285</result>