3.6*1.25-2.5*1.25简便运算
问题描述:
3.6*1.25-2.5*1.25简便运算
答
3.6*1.25-2.5*1.25
=1.25x(3.6-2.5)
=1.25x1.1
=1.25x(1+0.1)
=1.25x1+1.25x0.1
=1.25+0.125
=1.375