There are 10 carrots in the basket, the little gray rabbit ate half of them, and the little white rabbit ate 2, how many carrots are left?
篮子里有10个红萝卜，小灰兔吃了其中的一半，小白兔吃了2个，还剩下多少个．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 - 2</gadget>
<output>3</output>

<result>3</result>