2.8÷2+2×0.4 简便计算格式: 2.8÷2+2×0.4=( )=( ).............................

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2.8÷2+2×0.4 简便计算格式:   2.8÷2+2×0.4=(            )=(            ).............................
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2.8÷2+2×0.4 简便计算格式: 2.8÷2+2×0.4=( )=( ).............................
2.8÷2+2×0.4 简便计算
格式:
2.8÷2+2×0.4
=( )
=( )
.............................

2.8÷2+2×0.4 简便计算格式: 2.8÷2+2×0.4=( )=( ).............................
2.8÷2+2×0.4
=1.4+0.8
=2.2

1.4+0.8=2.2