Ben had five comic books.He lent three of them to Nancy.Three days later,Nancy returned them to him and gave him two of her own.Now,how many comic books does Ben have?
人气：470 ℃ 时间：2019-11-13 05:41:51
解答
本有5本连环画,他借了其中的3本给了南希.三天以后,南希把书还给了本同时又把自己的两本连环画给了本.现在本有多少本连环画了?
5-3+3+2=7本
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