Question

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

我知道有一种东西叫做：计算器，但是这个题目是这样的，计算下面各题，能简算的要简算，但是计算器要不知道谁要简算，谁不简算，我也不知道，我天生很笨的！对不起，实在不行，就算了！

Answer 1

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