易口算 YIKOUSUAN
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75-18=
90-61=
55-29=
81-59=
61-18=
74-56=
92-53=
80-52=
35-17=
90-52=
74-58=
58-39=
60-18=
60-38=
85-46=
77-68=
50-28=
61-18=
80-13=
56-19=
51-36=
81-18=
32-15=
42-37=
54-29=
70-12=
95-17=
55-49=
76-39=
54-36=
82-27=
92-36=
37-18=
42-18=
30-21=
78-49=
66-59=
83-69=
70-48=
45-29=
75-29=
95-49=
30-12=
51-36=
51-12=
90-61=
94-88=
40-12=
91-45=
60-13=
30-13=
72-53=
43-25=
46-28=
74-15=
60-43=
53-35=
83-17=
42-37=
45-29=
73-57=
84-39=
61-23=
32-26=
70-64=
91-28=
70-61=
22-19=
61-22=
73-38=
97-38=
52-28=
70-22=
76-39=
72-67=
71-59=
61-35=
50-11=
68-59=
82-46=
90-34=
52-15=
84-17=
66-57=
43-25=
83-15=
82-78=
64-15=
64-58=
45-29=
80-66=
81-54=
67-38=
83-78=
97-68=
71-53=
50-28=
81-16=
82-48=
50-44=
64-58=
75-17=
31-18=
92-27=
54-49=
52-49=
92-27=
43-15=
36-19=
52-25=
40-17=
27-18=
60-43=
85-39=
85-56=
62-33=
51-43=
73-35=
41-32=
93-89=
98-19=
74-29=
88-49=
95-26=
46-28=
21-17=
62-43=
61-54=
50-27=
90-53=
44-26=
96-27=
42-25=
62-55=
70-54=
65-46=
22-15=
82-16=
63-45=
82-27=
84-45=
82-18=
52-14=
56-48=
24-18=
71-14=
88-49=
33-25=
74-45=
91-12=
81-43=
55-36=
32-26=
72-53=
64-55=
32-19=
50-45=
94-88=
82-48=
84-45=
44-16=
61-22=
74-49=
91-12=
54-49=
66-57=
92-24=
82-77=
50-36=
74-45=
93-89=
90-51=
30-21=
72-29=
82-14=
82-18=
92-25=
73-47=
92-24=
80-77=
62-16=
94-38=
82-78=
81-16=
44-26=
96-27=
91-65=
92-58=
71-14=
53-37=
53-25=
94-25=
94-69=
32-19=
94-48=
70-22=
44-16=
40-17=
62-13=
75-49=
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