-1,0,1,2,4都是自然數(shù).
錯誤
分析:根據(jù)自然數(shù)的含義:表示物體個數(shù)的數(shù)叫自然數(shù),自然數(shù)由0開始(包括0),一個接一個,組成一個無窮的集體;如0、1、2、3、4…;據(jù)此判斷即可.
解答:0,1,2,4都是自然數(shù),-1不是自然數(shù),
故答案為:×.
點(diǎn)評:此題考查了自然數(shù)的含義
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