直接写出得数。                                                                                                                                      

0.42÷7 =	2÷5=	1÷0.2=	8.4÷2.1=
1.26÷0.6=	0.5÷0.2=	4÷0.4=	0.9×100÷1000=
0.4×9=	3.2÷0.08=	12.4÷（2.4+0.7）=	12.5÷0.5×0.4=