题目内容
【题目】0.25和0.250下面说法正确的是( )
A.计数单位相同 B.0.25比0.250的计数单位小
C.数值相等
【答案】C
【解析】
试题分析:由小数的性质可得:0.25和0.250在大小上相等,但计数单位不同,0.25的计数单位是0.01,0.250的计数单位是0.001;由此判断.
解:A、0.25的计数单位是0.01,0.250的计数单位是0.001,所以计数单位不同,故A说法错误;
B、0.25的计数单位是0.01,0.250的计数单位是0.001,所以0.25的计数单位比0.250的计数单位大,故B说法错误;
C、根据小数的性质可得:0.25=0.250,所以C说法正确;
故选:C.
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