Teacher Liu and Teacher Huang took 42 students to see the exhibition. The ticket price was 26 yuan for adults and half price for children. How much did they have to pay in total?
刘老师和黄老师带42名学生去看展览，票价成人为26元一张，儿童半价，他们一共要付多少钱？
<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<gadget id="calculator">26 / 2</gadget>
<output>13</output>

<gadget id="calculator">13 * 42</gadget>
<output>546</output>

<gadget id="calculator">52 + 546</gadget>
<output>598</output>

<result>598</result>