The school bought some books and put them on 8 bookshelves on average, each shelf holds 240 books, and there are 80 books left. How many books did the school buy?
学校买来一些图书，平均放在8个书架上，每个书架放240本，还剩80本，学校买来图书多少本？
<gadget id="calculator">240 * 8</gadget>
<output>1_920</output>

<gadget id="calculator">1_920 + 80</gadget>
<output>2_000</output>

<result>2_000</result>