There is a batch of fruit in the fruit warehouse, a total of 900 kg, 160 kg is shipped out for the first time, and 340 kg is shipped out for the second time, how many kg of fruit are left in the warehouse?
水果仓库有一批水果，共900千克，第一次运出160千克，第二次运出340千克，仓库还剩多少千克水果？
<gadget id="calculator">160 + 340</gadget>
<output>500</output>

<gadget id="calculator">900 - 500</gadget>
<output>400</output>

<result>400</result>