The school purchased a batch of excellent children's books and distributed them to 28 classes in the whole school. Each class has 120 books, and there are 83 books left as spares. How many books did the school buy in total?
学校购进一批优秀少儿图书，分给全校28个班，每班120本，还剩83本作为备用，学校一共买来多少本图书？
<gadget id="calculator">120 * 28</gadget>
<output>3_360</output>

<gadget id="calculator">3_360 + 83</gadget>
<output>3_443</output>

<result>3_443</result>