The fare of the hard-seat express train from Beijing to Qingdao is 116 yuan for adults and half price for children.
从北京到青岛的硬座特快列车成人票价是116元，儿童半价，小明一家三口往返要花多少元．
<gadget id="calculator">116 * 2</gadget>
<output>232</output>

<gadget id="calculator">116 / 2</gadget>
<output>58</output>

<gadget id="calculator">232 + 58</gadget>
<output>290</output>

<gadget id="calculator">290 * 2</gadget>
<output>580</output>

<result>580</result>