1.75×1.56-1.75+0.44×1.75的简便计算

问题描述:

1.75×1.56-1.75+0.44×1.75的简便计算

=1.75×1.56-1.75×1+1.75×0.44
=1.75×(1.56-1+0.44)
=1.75×1
=1.75