1. (2023四下·栾川期末) 直接写得数．                                                                                                     

1-0.23=	7.5+3.5=	2.4×5=	8×0.4=	0.8+3.2＝
22-2.5=	3.26×1000=	9.3+7=	7.3-0.6＝	2+0.1-2+0.1=