The price of a pencil case is 6.8 yuan, and the price of a school bag is 21.5 yuan more than that of a pencil case. Xiaohua wants to buy a schoolbag and a pencil case, how much does it cost in total?
一个铅笔盒的价格是6.8元，书包的价格比铅笔盒多21.5元．小华要买一个书包和一个铅笔盒，一共需要多少钱？
<gadget id="calculator">6.8 + 21.5 + 6.8</gadget>
<output>35.1</output>

<result>35.1</result>