The school bought 248 story books and 65 more science books than the story books. How many story books and science books did the school buy?
学校买来故事书248本，买来的科技书比故事书多65本，学校买来的故事书和科技书共有多少本？
<gadget id="calculator">248 + 65 + 248</gadget>
<output>561</output>

<result>561</result>