A little white rabbit eats 13 radishes a day, how many radishes do 15 little white rabbits eat a day?
一只小白兔一天吃13个萝卜，15只小白兔一天要吃多少个萝卜．
<gadget id="calculator">13 * 15</gadget>
<output>195</output>

<result>195</result>