The 10 small red flags on the exercise book can be exchanged for 2 pencils. There are already 25 small red flags in Li Shan's homework book, how many pencils can be exchanged.
作业本上的10面小红旗可以换2支铅笔．李山的作业本上已经有25面小红旗，可以换多少支铅笔．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">25 / 5</gadget>
<output>5</output>

<result>5</result>