文档介绍：It was last revised on January 2, 2021
两位数减一位数退位减法口算题
两位数减一位数
75-7= 22-7= 71-9= 23-2= 94-8= 73-8=
21-4= 70-7= 42-7= 33-6= 84-5=
42-8= 33-7= 86-4= 98-9= 57-9=
63-7= 91-5= 31-2= 22-9= 90-6=
71-7= 20-6= 51-2= 10-4= 70-1=
50-6= 86-80= 41-4= 54-7= 34-8=
44-8= 76-8= 37-9= 78-20= 22-9=
两位数减一位数
12-9= 71-2= 30-5= 23-7= 83-8=
63-5= 72-4= 41-3= 57-8= 52-5=
67-8= 81-7= 71-4= 53-8= 63-5=
20-2= 61-7= 66-9= 13-5= 52-5=
97-8= 40-3= 98-9= 84-8= 66-9=
95-8= 77-9= 52-6= 44-5= 71-9=
62-7= 44-9= 63-7= 97-8= 40-9=
20-9= 52-5= 73-7= 76-7= 63-4=
31-9= 71-2= 37-8= 15-8= 54-7=
75-9= 61-8= 71-4= 74-8= 94-5=
两位数减一位数
22-7= 25-6= 87-8= 41-7= 43-6=
95-8= 30-5= 70-9= 73-4= 12-6=
11-4= 50-5= 90-8= 87-8= 30-6=
44-