The school bought 325 story books and 123 science and technology books, and distributed these books to 4 grades on average. How many books were distributed to each grade?
学校买了325本故事会，123本科技书，把这些书平均分给4个年级，每个年级分得多少本？
<gadget id="calculator">325 + 123</gadget>
<output>448</output>

<gadget id="calculator">448 / 4</gadget>
<output>112</output>

<result>112</result>