A pen is 5.65 yuan, and a notebook is 8.7 yuan. How much does it cost to buy a pen and a notebook?
一支钢笔5.65元，一本笔记本8.7元．买一支钢笔和一本笔记本要花多少钱？
<gadget id="calculator">5.65 + 8.7</gadget>
<output>14.35</output>

<result>14.35</result>