The store sells 250 kilograms of apples, and there are 470 kilograms left. How many kilograms of apples are there in the store?
商店卖出250千克苹果，还剩下470千克，商店里原有多少千克苹果？
<gadget id="calculator">250 + 470</gadget>
<output>720</output>

<result>720</result>