The school bought some exercise books and distributed them to 23 classes, each class had 154 books, and there were 35 books left. How many exercise books did the school buy in total?
学校买了一些练习本，发给23个班，每班154本，还剩下35本．学校一共买来多少本练习本？
<gadget id="calculator">154 * 23</gadget>
<output>3_542</output>

<gadget id="calculator">3_542 + 35</gadget>
<output>3_577</output>

<result>3_577</result>