3.52-0.48x1.2用简便方法计算
问题描述：
3.52-0.48x1.2用简便方法计算
答
3.52-0.48x1.2
=3.52-0.48x1-0.48x0.2
=3.52-0.48-0.096
=3.04-0.096
=3.04-0.1+0.04
=2.94+0.04
=2.944