Teacher Wang used 100 yuan to buy school supplies to reward students. I bought 5 pens for 46 yuan, and used the remaining money to buy notebooks for 4.5 yuan each. How many more notebooks can I buy?
王老师用100元钱去买学习用品来奖励学生．用46元买了5支钢笔，剩下钱用来买每本4.5元的笔记本．还能买笔记本多少本？
<gadget id="calculator">100 - 46</gadget>
<output>54</output>

<gadget id="calculator">54 / 4.5</gadget>
<output>12</output>

<result>12</result>