1.56/1.3+4.5用简便方法计算
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1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5
=(1.3+0.26)/1.3+4.5
=1+0.2+4.5
=5.7
1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5用简便方法计算
1.56/1.3+4.5
=(1.3+0.26)/1.3+4.5
=1+0.2+4.5
=5.7