直接写出得数。                                                                                                                                      

8×0.8=	0.42×2=	4.2×2=	3.6×0.2=
0.5×0.2=	0.6×4=	0.98÷0.1=	15÷0.5=
4.5÷45=	8.4÷0.4=	1.24×0.2=	1.08÷2=