0.111*5.5+0.555*0.9
问题描述：
0.111*5.5+0.555*0.9
答
0.111*5.5+0.555*0.9
=0.111×5.5+0.111×4.5
=0.111×（5.5+4.5）
=0.111×10
=1.11