On Children's Day, Fang Fang went to Nanhu Park with her grandfather, father, and mother. Adult tickets were 25 yuan each, and children's tickets were half price. How much did they spend on the tickets?
儿童节那天，芳芳和爷爷、爸爸、妈妈去南湖公园游玩，成人门票每张25元，儿童门票半价，他们买门票一共要花多少钱？
<gadget id="calculator">25 * 3</gadget>
<output>75</output>

<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">75 + (25/2)</gadget>
<output>175/2 = around 87.5</output>

<result>175/2 = around 87.5</result>