9.8乘3.4加6.8乘0.1怎么简便计算
问题描述:
9.8乘3.4加6.8乘0.1怎么简便计算
答
9.8*3.4+6.8*0.1
=(10-0.2)*3.4+6.8
=34-0.68+0.68
=34