On Sunday, the third grade Xiaohua went to the park to play with her parents. Park tickets are: 24 yuan per adult, 12 yuan per child. How much do they pay for tickets?
星期天，三年级小华和爸爸妈妈去公园玩．公园的门票是：成人每位24元，儿童每位12元．请问他们买门票要花多少钱？
<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<gadget id="calculator">48 + 12</gadget>
<output>60</output>

<result>60</result>