In the first half of the year, the Science and Technology Museum sold 35,000 adult tickets, and the number of children's tickets sold was 1.6 times the number of adult tickets. How many thousands of adult tickets and children's tickets did the Science and Technology Museum sell in the first half of the year?
科技馆上半年卖出成人票3.5万张，卖出的儿童票张数是成人票张数的1.6倍，科技馆上半年卖出的成人票和儿童票共有多少万张？
<gadget id="calculator">3.5 * 1.6</gadget>
<output>5.6</output>

<gadget id="calculator">5.6 + 3.5</gadget>
<output>9.1</output>

<result>9.1</result>