The fifth grade students participated in the voluntary book donation activity. Class Five 1 donated 500 books, Class Five 2 donated 80% of Class Five 1, Class Five 3 donated 120% of Class Five 2, Class Five 1 and Class Five 3 Donate more books than who? (Please compare the two methods).
五年级同学参加义务捐书活动，五1班捐了500本，五2班捐的本数是五1班80%，五3班捐的本数是五2班120%，五1班和五3班比谁捐书多？(请用两种方法比较一下)．
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