7.9*0.64+0.79*3.6简算
问题描述:
7.9*0.64+0.79*3.6简算
答
7.9*0.64+0.79*3.6
=7.9*0.64+7.9*0.36
=7.9*(0.64+0.36)
=7.9*1
=7.9