Teacher Li bought prizes for the students who won the math competition. He bought 12 pens for 148.8 yuan. How much is each pen worth?
李老师给参加数学竞赛获奖的同学买奖品，用148.8元买了12枝钢笔，每枝钢笔值多少元．
<gadget id="calculator">148.8 / 12</gadget>
<output>12.4</output>

<result>12.4</result>