用简便方法计算 3.6+0.4-3.6+0.4
问题描述:
用简便方法计算 3.6+0.4-3.6+0.4
用简便方法计算 3.6+0.4-3.6+0.4
答
=(3.6-3.6)+(0.4+0.4)
=0+0.8
=0.8