两位数减一位数退位减法100以内口算题
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两位数减一位数退位减法100以内口算题20-5=70-5=53-6=24-7=
50-7=40-6=54-9=
40-3=80-8=
60-2=
49-8=37-5=
37-6=
37-7=
37-8=
39-5=
39-6=
39-7=
39-8=
26-8=
77-9=
38-2=
48-3=
53-9=49-9=
81-2=68-3=53-7=
60-4=26-8=46-9=53-8=
30-6= 20-8= 50-4= 70-4= 20-5= 70-8= 40-7= 80-4= 90-1= 60-7= 80-5= 70-3= 20-3= 30-5= 50-6= 60-2= 30-4= 40-5= 50-7= 60-3=
37-8= 22-4= 23-9= 42-6= 41-7= 63-8= 85-8= 38-9= 73-7= 38-9= 45-9= 72-3= 24-6= 63-8= 72-5= 34-8= 71-7= 65-8= 48-9= 21-7=
26-9= 21-3= 27-4= 27-5= 27-6= 27-7= 34-8= 34-9= 35-5= 35-6= 35-7= 49-7= 53-9= 54-6= 35-8= 35-9= 37-4= 44-9= 45-5= 45-6=
45-7= 45-8= 45-9= 46-4= 46-5= 37-9= 38-2= 38-3= 38-4= 38-5= 38-6= 23-9= 24-6= 24-7= 24-8= 24-9= 38-7= 38-8= 39-9= 43-7=
43-8= 43-9= 44-6= 44-7= 28-7= 28-9= 21-5= 22-7= 44-8= 46-6= 46-7= 58-4= 18-5= 62-6= 42-7= 27-8= 38-9= 22-3= 41-2= 20-3=
41-4= 42-5= 22-6= XXX= 34-9= 25-5= 75-6= 68-9= 78-4= 36-7= 54-8= 26-4= 36-5= 82-6= 46-7= 59-9= 23-7= 43-8= 64-9= 24-8=
27-9=
31-3=
24-4=
71-6=
22-7=
24-5=
41-6=
24-6=
34-7=
74-8=
44-9=
31-5=
27-6=
52-7=
55-8=15-7= 25-8=
35-9=
46-4=
56-5=
35-6=
61-8= 22-9= 29-1= 79-8= 49-9= 23-7= 61-2= 56-9= 21-3= 23-4= 34-5= 52-6= 27-7= 37-8= 59-1= 79-2= 59-3= 45-5= 25-8= 81-9=
26-8= 31-4= 66-7= 62-8= 24-9= 33-7= 53-8= 52-5= 34-9= 15-9= 55-6= 24-7= 34-8= 24-6= 67-7= 37-8= 54-9= 25-5= 65-6= 33-7=
21-8= 37-9= 21-4= 66-5= 28-6= 21-7= 34-2= 52-3= 34-4= 41-5= 34-6= 14-7= 34-8= 21-2= 22-3= 24-6= 21-7= 23-4= 22-5= 22-7=
20-5= 25-6= 31-7= 24-8= 20-9= 24-7= 34-5= 34-5= 24-5= 51-5= 34-6= 24-9= 25-5= 32-6= 17-7= 22-8= 34-9= 22-4= 31-5= 34-6=
26-7= 26-8= 219= 24-3= 77-4= 27-9= 21-2= 22-3= 51-4= 78-5= 24-6= 76-7= 29-8= 24-9= 35-8= 21-9= 34-6=