Qiangqiang took a fancy to 4 toy cars and 3 toy dolls in the toy store, but his mother only allowed him to buy 1 toy car and 1 toy doll. How many different purchase plans are there?
强强在玩具店看中了4辆玩具汽车和3个玩具娃娃，可妈妈只允许他买一辆玩具汽车和一个玩具娃娃，共有多少种不同的购买方案．
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>