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
=18*0.86+18*0.13+18*0.01
=18*(0.86+0.13+0.01)
=18*1
=18
答
=1.8*(8.6+1.3+0.1)
=18
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