There are 5 coats and 3 pairs of trousers in Xiaohong's closet. How many different matching methods are there for Xiaohong to make a suit of clothes?
小红的衣柜里有5件上衣，3条裤子，小红想配成一套衣服，有多少种不同的搭配方法．
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<result>15</result>