Xiao Ming has 2 coats and 3 pairs of trousers. How many ways can they be matched to make a suit?
小明有2件上衣，3条裤子，要配成一套衣服，有多少种搭配方法．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>