There are 8 balls in the school, and the number of basketballs is 3 times that of the balls. How many more basketballs are there than the balls?
学校有8个皮球，篮球是皮球的3倍，篮球比皮球多几个？
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

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

<result>16</result>