Xiaohong goes on a trip with her father and mother. The ticket for adults is 80 yuan, and the ticket for children is 40 yuan. How much does it cost to buy the tickets?
小红跟爸爸、妈妈去旅游，成人门票80元，儿童门票40元，买门票共花多少元？
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">160 + 40</gadget>
<output>200</output>

<result>200</result>