There are 30 apples in the basket, at least how many more apples are added, and they can be distributed equally among 7 children.
篮子里有30个苹果，最少再添上多少个苹果，就能正好平均分给7个小朋友．
<gadget id="calculator">35 / 7</gadget>
<output>5</output>

<result>5</result>