A storybook is 9.5 yuan, and a comic book is 10.8 yuan. How much does it cost to buy a storybook and a comic book altogether?
一本故事书9.5元，一本连环画10.8元．买一故事书和一本连环画一共需要多少元？
<gadget id="calculator">9.5 + 10.8</gadget>
<output>20.3</output>

<result>20.3</result>