A car costs 390 yuan, and it costs 306 yuan to buy 3 dolls. How much is a car more expensive than a doll?
一辆小汽车390元，买3个布娃娃一共花了306元，一辆小汽车比一个布娃娃贵多少钱？
<gadget id="calculator">306 / 3</gadget>
<output>102</output>

<gadget id="calculator">390 - 102</gadget>
<output>288</output>

<result>288</result>