1. (2023四下·市北区期末) 直接写出得数                                                                                                                                      

62=	99+68=	c×3=	12+9.9+0.1=
0.4+1.2=	m+m=	4.2-2.2=	12×5÷12×5=
0.45×100=	1-0.5=	79÷100=	4.6-2.8=