《两位数减一位数》
14-2= 96-5= 48-4= 57-5=
97-3= 94-2= 48-2= 56-4=
39-2= 34-1= 76-4= 88-4=
76-5= 48-4= 66-5= 76-2=
17-4= 18-4= 53-1= 76-4=
《两位数减一位数》
14-2= 96-5= 48-4= 57-5=
97-3= 94-2= 48-2= 56-4=
39-2= 34-1= 76-4= 88-4=
76-5= 48-4= 66-5= 76-2=
17-4= 18-4= 53-1= 76-4=