23.9-0.6*0.6-0.64怎么简便计算
问题描述:
23.9-0.6*0.6-0.64怎么简便计算
答
23.9-0.6*0.6-0.64
=23.9-0.36-0.64
=23.9-(0.36+0.64)
=23.9-1
=22.9