70.2+4.48÷0.16
=70.2+28
=98.2
0.81÷0.03+0.95÷19
=27+0.05
=27.05
0.125×32×2.5
=（0.125×8）×（4×2.5）
=10
0.6×[0.85÷（2.1-0.4）]
=0.6×[0.85÷1.7]
=0.6×0.5
=0.3