18*0.86+1.8*1.3+0.18的简算
问题描述：
18*0.86+1.8*1.3+0.18的简算
答
18*0.86+1.8*1.3+0.18
=1.8*8.6+1.8*1.3+1.8×0.1
=1.8×（8.6+1.3+0.1）
=1.8×10
=18