The first class of the second grade has 8 border pictures, and the story books are three times as many as the comic books. How many more story books than comic books?
二年级一班有8本边环画，故事书是连环画的3倍．故事书比连环画多几本？
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">24 - 8</gadget>
<output>16</output>

<result>16</result>