Xiao Li has 3 different tops and 4 different pants. If the tops and pants are worn together, how many ways can they be worn?
小李有3件不同的上衣和4条不同的裤子，若上衣和裤子的搭配着穿，一共有几种穿法多少
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>