Xiaoqiang went to the Forbidden City with his father and mother. The one-way fare was 32.5 yuan per adult and half price for children. How much does it cost for their family's round-trip transportation?
小强和爸爸、妈妈去故宫游玩，单程票价成人每人32.5元，儿童半价．他们一家往返交通费要用多少元？
<gadget id="calculator">32.5 * 2</gadget>
<output>65</output>

<gadget id="calculator">32.5 / 2</gadget>
<output>16.25</output>

<gadget id="calculator">65 + 16.25</gadget>
<output>81.25</output>

<gadget id="calculator">81.25 * 2</gadget>
<output>162.5</output>

<result>162.5</result>