两位数减一位数退位减法口算题.doc

两位数减一位数退位减法口算题.doc两位数减一位数
75-7=
22-7=
71-9=
23-2=
12-8=
21-2=
91-4=
53-8=
61-8=
56-7=
16-6=
27-9=
29-20=
78-9=
60-5=
94-70=
61-9=
54-5=
79-60=
46-7=
71-20=
80-4=
91-6=
83-5=
50-9=
97-3=
75-9=
11-6=
53-7=
31-20=
85-9=
98-5=
96-2=
73-9=
11-5=
12-3=
14-7=
60-1=
36-7=
80-3=
52-6=
31-5=
32-7=
12-5=
48-9=
76-8=
64-6=
71-7=
58-4=
65-9=
两位数减一位数
62-3=
97-9=
59-4=
32-7=
70-40=
41-5=
99-4=
91-5=
66-5=
50-4=
48-5=
72-9=
10-2=
54-7=
68-6=
11-9=
30-8=
53-5=
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=
1
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=
44-5=
93-6=
44-8=
11-9=
90-1=
23-7=
53-6=
82-3=
13-5=
20-2=
30-9=
20-5=
92-9=
61-4=
19-2=
14-6=
73-9=
54-9=
13-7=
41-4=
14-5=