The school has 5 basketballs, and the number of badmintons is 9 times that of basketballs. How many badmintons are there?
学校有篮球5个，羽毛球的数量是篮球的9倍，羽毛球有多少个？
<gadget id="calculator">5 * 9</gadget>
<output>45</output>

<result>45</result>