直接写出得数。                                                                                                                                      

12×0.6=	4.6x+2.4x=	1.7+0.23=	0.56a-0.46a=
1.5×0.2=	0.32÷16=	0.42÷0.1=	0.4×0.8=
3.2÷1.6=	3.5÷0.5=	x+x+3=	3.3b+2.7b=