100以内两位数减一位数（2023-09-24）

100以内两位数减一位数（2023-09-24）：46-5= 37-7= 46-9= 55-5= 36-1= 87-6= 54-3= 46-7= 29-0= 78-4= 63-5= 44-1= 12-9= 97-8= 11-2= 30-7= 21-4= 53-1= 95-0= 71-6= 38-7= 29-5= 54-8= 87-4= 96-6= 62-3= 21-9= 20-3= 37-1= 89-9= 37-6= 28-4= 87-2= 46-8= 95-5= 78-0= 45-1= 79-7= 12-3= 97-9= 55-8= 44-0= 54-2= 88-7= 36-4= 11-1= 96-3= 78-5= 63-9= 54-6= ...