计算下面各题,怎样简便就怎样计算。
0.43÷8÷0.125
8.2÷0.25÷0.4
2.38÷0.5÷1.25÷2÷0.8
37.1÷1.25÷3.2÷2.5

1. 0.43÷8÷0.125
=0.43÷(8×0.125)
=0.43÷1
=0.43
2. 8.2÷0.25÷0.4
=8.2÷(0.25×0.4)
=8.2÷0.1
=82
3. 2.38÷0.5÷1.25÷2÷0.8
=2.38÷[(0.5×2)×(1.25×0.8)]
=2.38÷[1×1]
=2.38
4. 37.1÷1.25÷3.2÷2.5
=37.1÷[1.25×3.2×2.5]
=37.1÷[1.25×0.8×4×2.5]
=37.1÷[(1.25×0.8)×(4×2.5)]
=37.1÷[1×10]
=3.71