Teacher Li took 38 students to the zoo to watch the elephant show. Adult tickets are 30 yuan per person, and children are half price. How much does it cost to buy tickets?
李老师带38名同学去动物园观看大象表演，成人门票每人30元，儿童半价，购买门票一共需要多少钱？
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">15 * 38</gadget>
<output>570</output>

<gadget id="calculator">30 + 570</gadget>
<output>600</output>

<result>600</result>