0.8*[(5-0.68)/1.2]怎样简便计算
问题描述:
0.8*[(5-0.68)/1.2]怎样简便计算
答
0.8*[(5-0.68)/1.2]
=(0.8/1.2)*(5-0.68)
=(2/3)*4.32
=2*4.32/3
=2*1.44
=2.88