A notebook is 2.8 yuan, and a pen is 7.3 yuan. How much do you need to pay for a notebook and a pen?
一本笔记本2.8元，一枝钢笔7.3元，买一本笔记本和一枝钢笔共需付多少元？
<gadget id="calculator">2.8 + 7.3</gadget>
<output>10.1</output>

<result>10.1</result>