问题标题:
【在()中填入符号+、—、*、/和括号,使下面算式的答案分别是0,0.2,0.4,0.6,0.8,1.0.2()0.2()0.2()0.2()0.2=00.2()0.2()0.2()0.2()0.2=0.20.2()0.2()0.2()0.2()0.2=0.40.2()0.】
问题描述:
在()中填入符号+、—、*、/和括号,使下面算式的答案分别是0,0.2,0.4,0.6,0.8,1.
0.2( )0.2( )0.2( )0.2( )0.2=0
0.2( )0.2( )0.2( )0.2( )0.2=0.2
0.2( )0.2( )0.2( )0.2( )0.2=0.4
0.2( )0.2( )0.2( )0.2( )0.2=0.6
0.2( )0.2( )0.2( )0.2( )0.2=0.8
牛国柱回答:
[0.2(-)0.2](*)0.2(+)0.2(-)0.2=0
0.2(+)0.2(+)0.2(-)0.2(-)0.2=0.2
0.2(/)0.2(-)0.2(-)0.2(-)0.2=0.4
0.2(/)0.2(*)0.2(+)0.2(+)0.2=0.6
0.2(/)0.2(+)0.2(-)0.2(-)0.2=0.8
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