文档介绍：20+5=
62+32=
71-17=
27+34=
51-49=
64-32=
83-62=
3+67=
100-28=
7+5=
87-72=
68-11=
39+9=
2+55=
59-5=
88-8=
=
63-24=
27+68=
34+8=
29+71=
62-3=
20+33=
16+68=
68-9=
12+17=
25+45=
20+53=
27+34=
35+46=
86-38=
84-50=
56+14=
62-61=
59-36=
51-33=
79-68= 84-71=
92-49=
46-4=
57+15=
68+20=
13+84=
75-6=
83-35=
34+13=
92-58=
17+46=
81+1=
90-89=
59-27=
94-39=
80-66=
19+76=
58-33=
94-34=
47-29=
13-4=
9+23=
71-58=
59-13=
11+87=
39+55=
19+10=
16+84=
67+19=
41-11=
80-70=
98-86=
50-42=
90-33=
86-73=
16+71=
52+28=
90+3=
99-22=
91-73=
74-33=
96-41=
45+55=
20+16=
27+45=
65-39=
60+22=
20-6=
32+14=
98-63=
48+51=
35+53=
48+18=
61+27=
64+17=
23+36=
20+22=
98-25=
68-26=
50+11=
62+12=
50+9=
8+57=
12+76=
49+31=
51+25=
60+16=
45-35=
28-22=
37+55=
23+28=
33-3=
7+46=
42+49=
94-20=
83-35=
56-6=
71-20=
69-30=
91+2=
8+81=
15-11=
74+24=
92-2=
78+11=
90+9=
47-22=
25+6=
67-56=
34+24=
27-12=
68-57=
13+41=
20+59=
92-40=
79+6=
90-5=
87-16=
47+22=
17+43=
25+75=
69-36=
65-4=
86+12=
95-75=
35+27=
96-90=
5+15=
55-15=
86-26=
41+39=
81+2=
93-13=
2+73=
98-92=
10+34=
10+3=
7+61=
100-10=
39-15=
65-17=
15+83=
18+28=
19+49=
54-46=
91-20=
18+3=
46-41=
58+28=
81-9=
84+3=
72-30=
53+3=
48-16=
30+12=
57-46=
81+14=
90+5=
98-11=
69-3=
14+12=
71-69=
58-47=
88+4=
16+43=
57+31=
33+30=
31+4=
64-42=
54-5=
45+45=
47+34=
29+54=
31-3=
74-70=
92-79=
50+36=
38-20=
90-5=
58+13=
79-65=
72-6=
76-65=
39+28=
45+36=
34+65=
99-65=
67-64=
9+2=
79-68=
80-20=
27+71=
95-14=
21+37=
92+3=
84-38=
8+23=
68-55=
14+13=
16+7=
72-4=
32+65=
81-25=
58+29=
45+21=
38-15=
82+6=
57+5=
100-58=
63-39=
87-31=
89-51=
15+42=
17+59=
31+28=
41-21=
19+12=
23-9=
54+25=
11-6=
55-39=
55-21=
50-24=
28+48=
28+34=
84-74=
61-3=
53+33=
35+35=
5+31=
50-19=
64-61=
42-27=
11+46=
51-27=
71-68=
21+37=
43-7=
89-56=
32+18=
60+6=