On weekends, Xiaoqing's family of three went to the theater to watch movies. Each movie ticket was 30 yuan for adults and half price for children. How much did Xiaoqing's family spend watching the movie?
周末，小青一家三口去影院看电影，成人每张电影票30元，儿童半价．小青一家看电影共花了多少元？
<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">60 + 15</gadget>
<output>75</output>

<result>75</result>