Students in two classes in the third grade donated books to the disaster area. There were 56 students in the first class and 54 students in the second class. On average, each person donated 4 books. How many books can they donate in total?
三年级两个班的同学为灾区捐书，一班有56人，二班有54人，平均每人捐4本，一共能捐多少本？
<gadget id="calculator">56 + 54</gadget>
<output>110</output>

<gadget id="calculator">110 * 4</gadget>
<output>440</output>

<result>440</result>