题目内容
0.4=________:4=4÷________=________%
1.6 10 40
分析:解答此题的关键是0.4,根据比的前、后项和比值之间的关系,0.4×4=1.6,由此得出1.6:4=0.4;根据除法中各部分间的关系,4÷0.4=10,由此得出4÷10=0.4;把0.4的小数点向右移动两位,添上百分号就是40%.由此进行转化并填空.
解答:0.4=1.6:4=4÷10=40%;
故答案为:1.6,10,40.
点评:此题主要是考查除法中各部分间的关系、比的前、后项和比值之间的关系及转化,利用它们之间的关系和性质进行转化即可.
分析:解答此题的关键是0.4,根据比的前、后项和比值之间的关系,0.4×4=1.6,由此得出1.6:4=0.4;根据除法中各部分间的关系,4÷0.4=10,由此得出4÷10=0.4;把0.4的小数点向右移动两位,添上百分号就是40%.由此进行转化并填空.
解答:0.4=1.6:4=4÷10=40%;
故答案为:1.6,10,40.
点评:此题主要是考查除法中各部分间的关系、比的前、后项和比值之间的关系及转化,利用它们之间的关系和性质进行转化即可.
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