9.8乘3.4加6.8乘0.1怎么简便计算请写出来
问题描述:
9.8乘3.4加6.8乘0.1怎么简便计算请写出来
答
=9.8/2*(3.4*2)+6.8*0.1
=4.9*6.8+6.8*0.1
=6.8*5
=6.8*10/2
=34