直接写出得数。                                                                                                                                      

0.25×5=	0.3×0.9=	0.04×25=	8.9×0.1=
0.75÷15=	1÷0.05=	4.9÷7=	3.2÷0.04=
2.5×0.4=	0.51÷5.1=	12.5×8=	45÷100=