The fruit wholesale department has 350 kg of apples and 480 kg of pears, and bananas are 260 kg less than the total mass of apples and pears. How many kilograms of bananas are there in the fruit wholesale department?
水果批发部有苹果350千克，梨480千克，香蕉比苹果和梨的总质量少260千克．水果批发部有香蕉多少千克？
<gadget id="calculator">350 + 480</gadget>
<output>830</output>

<gadget id="calculator">830 - 260</gadget>
<output>570</output>

<result>570</result>