2.16÷0.27×0.12 6.44÷2.8-0.47 6.15÷0.125÷0.8 18.952÷4.12+5.4

2.16÷0.27×0.12 6.44÷2.8-0.47 6.15÷0.125÷0.8 18.952÷4.12+5.4

2.16÷0.27×0.12
=216÷27×0.12
=216÷3÷6×0.12
=72÷6×0.12
=12×0.12
=1.44

6.44÷2.8-0.47
=6.44÷2÷2÷0.7-0.47
=3.22÷2÷0.7-0.47
=1.61÷0.7-0.47
=2.3-0.47
=1.83

6.15÷0.125÷0.8
=6.15÷（0.125×0.8）
=6.15÷0.1
=61.5

18.952÷4.12+5.4
=1895.2÷412+5.4
=1895.2÷2÷2÷206+5.4
=947.6÷2÷103+5.4
=473.8÷103+5.4
=4.6+5.4
=10来自：求助得到的回答

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