There are 170 freshmen in the first grade of Dongfeng Primary School, and every two people use one desk. How many desks are needed in total?
东风小学一年级新生170人，每两人用一张课桌，一共需要多少张课桌？
<gadget id="calculator">170 / 2</gadget>
<output>85</output>

<result>85</result>