Eight classes in the third grade donated a total of 1,392 books in the "Book Rafting" activity, and there were 11 classes in the fifth grade, with an average of 168 books donated per class. How many more books were donated by the fifth grade than the third grade? (Column comprehensive formula solution)
三年级8个班在"图书漂流"活动中共捐书1392本，五年级有11个班，平均每班捐书168本，五年级比三年级多捐多少本书？(列综合算式解答)
<gadget id="calculator">168 * 11</gadget>
<output>1_848</output>

<gadget id="calculator">1_848 - 1_392</gadget>
<output>456</output>

<result>456</result>