两位数减一位数退位减法100以内口算题
任务栏不显示打开的窗口-辣妹子
20-5= 70-3= 23-9=
63-8= 27-6=
72-5= 27-7=
34-8=
35-9=
37-4=
44-9=
38-2=
38-3=
38-4=
39-8=
39-9=
43-7=
50-7= 20-3= 42-6=
40-3= 70-5= 41-7=
34-8=
60-2=
30-6=
20-8=
50-4=
70-4=
20-5=
70-8=
40-7=
80-4=
90-1=
60-7=
80-5=
40-6=
80-8=
60-4=
30-5=
50-6=
60-2=
30-4=
40-5=
50-7=
60-3=
37-8=
22-4=
63-8=
53-6=
54-9=
81-2=
26-8=
85-8=
38-9=
73-7=
38-9=
45-9=
72-3=
24-6=
71-7=
65-8=
48-9=
24-7=
53-9=
68-3=
46-9=
21-7=
26-9=
21-3=
27-4=
27-5=
34-9=
35-5=
35-6=
35-7=
49-7=
49-8=
49-9=
53-7=
53-8=
53-9=
54-6=
35-8=
45-5=
45-6=
45-7=
45-8=
45-9=
46-4=
46-5=
37-5=
37-6=
37-7=
37-8=
37-9=
38-5=
38-6=
23-9=
24-6=
24-7=
24-8=
24-9=
38-7=
38-8=
39-5=
39-6=
39-7=
43-8=
43-9=
44-6=
44-7=
28-7=
28-9=
21-5=
22-7=
44-8=
46-6=
46-7=
26-8=
77-9=
38-2=
48-3=
58-4=
18-5=
62-6=
42-7=
27-8=
38-9=
22-3=
41-2=
20-3=
41-4=
42-5=
22-6=
34-7=
54-8=
34-9=
25-5=
75-6=
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=
68-9=
78-4=
36-7=
54-8=
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=
26-4=
36-5=
82-6=
46-7=
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=
59-9=
23-7=
43-8=
64-9=
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=
24-8=
27-9=
31-3=
24-4=
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=
71-6=
22-7=
24-5=
41-6=
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=
24-6=
34-7=
74-8=
44-9=
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=
31-5=
27-6=
52-7=
55-8=
27-9=
21-2=
22-3=
51-4=
78-5=
24-6=
76-7=
29-8=
24-9=
35-8=
21-9=
34-6=
24-7=