文档介绍:28+12=
80+72=
61-15=
90-11=
88+10=
49+36=
78-44=
79-14=
72-63=
76-55=
45-28=
32+56=
56+27=
39+14=
382=
38+73=
64-26=
70-48=
82-29=
19+49=
91-73=
36+45=
48+16=
94-35=
35-28=
84-27=
27-18=
36+29=
24+59=
92-46=
95-49=
34+39=
81+47=
94-48=
22-18=
34+19=
35-39=
55-18=
19+31=
92-56=
77-58=
84-46=
12+69=
54-49=
76+17=
76+17=
36+35=
35+46=
63-15=
85-46=
55+18=
83-74=
41-19=
44+28=
31-20=
36+35=
78+17=
53+19=
88-69=
34-28=
54-19=
34+48=
58-19=
93-15=
36+18=
52-34=
29+44=
90-63=
95-66=
41-32=
48+35=
37+25=
46+28=
73-49=
64-25=
35+59=
38+45=
一年
59+33=
35-16=
94-17=
56+34=
36+53=
55+36=
55-38=
93-64=
26+58=
70-23=
66-39=
49+37=
50-15=
90-12=
37+17=
58+39=
36-13=
51-18=
62-13=
58-19=
73+16=
43-40=
48+37=
66-19=
37+14=
31+29=
28+42=
41+33=
76-59=
53-38=
49+11=
47-18=
85-68=
85-56=
39+57=
53+43=
64-59=
63-44=
65-64=
75+25=
12+69=
98-19=
92-18=
39+20=
25+19=
32+59=
40-11=
49+27=
63-48=
48+33=
93-84=
34+29=
37-29=
53-31=
48+33=
80-17=
37+39=
28+19=
72-24=
85-48=
74-59=
55-28=
70-61=
92-17=
56+45=
62-38=
57+23=
67+36=
86-38=
28+22=
77+16=
37+44=
18+69=
77+23=
40-13=
38+29=
35+38=
86-38=
22-19=
46+44=
53-15=
74-34=
57+19=
73-15=
92-52=
74-26=
78-69=
98-49=
82-66=
44+36=
67-19=
17+46=
39+11=
35+45=
47+62=
48-39=
62-23=
83-44=
37+56=
38+62=
一年
24+71=
45+27=
71-34=
76-29=
28+64=
38+14=
50-18=
55+29=
71-23=
59+23=
58+43=
35+47=
58+36=
29+48=
38+52=
35+37=
49+39=
30-21=
63-25=
39+44=
75+16=
42-28=
44-28=
70-42=
58+15=
70-47=
35+22=
45+55=
69-35=
71-33=
92-56=
38+52=
19+53=
77-39=
68-29=
76-67=
34+38=
92-68=
63-28=
35