如题所述
第1个回答 2019-12-29
0.22+(1-0.8)÷2.5
=0.22+0.2÷(10÷4)
=0.22+0.2X4÷10
=0.22+0.08
=0.3本回答被网友采纳
=0.22+0.2÷(10÷4)
=0.22+0.2X4÷10
=0.22+0.08
=0.3本回答被网友采纳
第2个回答 2019-12-29
原式
=0.22+0.2÷2.5
=0.22+0.08
=0.3
=0.22+0.2÷2.5
=0.22+0.08
=0.3