6.4x0.25+3.6除4简便方法

问题描述:

6.4x0.25+3.6除4简便方法

6.4x0.25+3.6÷4
=6.4x0.25+3.6x0.25
=(6.4+3.6)x0.25
=10x0.25
=2.5