文档介绍：34-5=
67+1=
85-30=
62-30=
72+6=
32+2=
97+1=
32-5=
62+2=
66+1=
31+9=
64-50=
78-40=
15-6=
56+0=
76-0=
90-80=
31-2=
85-20=
62+0=
69+9=
39+4=
38+7=
35-20=
62+4=
48+4=
67-60=
50+0=
24+6=
76+0=
99-40=
60-50=
30-0=
40+40=
29+2=
81-50=
44-5=
34+8=
67-50=
41-4=
87-60=
87+6=
81+4=
62+1=
82-10=
14-7=
13-8=
96-10=
89+4=
28+7=
42+0=
73-4=
98-80=
97-90=
72+4=
58-20=
52-4=
87+8=
26+7=
81-60=
23+3=
41-3=
29+6=
54+4=
67+7=
59-20=
62-7=
43+7=
67+0=
66+4=
85-7=
57-30=
56-30=
29+5=
49+1=
43-7=
46-10=
64-7=
34-20=
94+1=
84-10=
95-9=
82+8=
82-9=
23-8=
85-70=
31-10=
91+1=
33+5=
61+1=
12-3=
83+3=
41+7=
56-50=
45-10=
87-30=
93-10=
27+4=
98-20=
41+8=
74-5=
49-20=
31+7=
53+7=
60-40=
33-4=
93+3=
94+4=
61-9=
68-60=
11-5=
81+5=
52+3=
38-9=
39-20=
65+8=
57+8=
10+50=
77-40=
28+5=
21-6=
63+5=
72-70=
48-30=
90-0=
62-3=
85-10=
46-0=
91-30=
51+4=
53+5=
67+9=
95-50=
38+8=
56+1=
63-5=
87+5=
49+9=
22-6=
72-8=
44+8=
53-5=
48-10=
54-30=
96-30=
92-9=
98-70=
67+8=
52+4=
62-60=
83-80=
96-8=
51+5=
76+2=
62+6=
73+5=
84-40=
27-10=
65-9=
39+3=
91-9=
69-40=
59+8=
58+1=
61-4=
36+1=
92-5=
94-8=
96-70=
75+5=
56-40=
53-20=
58+7=
39+7=
38+0=
83+9=
57+0=
92-30=
61-6=
46+5=
22+4=
36+3=
67-30=
30-20=
85+1=
96-80=
71-8=
93-60=
63-40=
42-40=
97+0=
11-8=
49+2=
64+1=
70-40=
61-2=
84+5=
10+70=
95+5=
59-0=
71-3=
41-8=
96+3=
44-40=
36-30=
23+4=
44-0=
53-9=
83-20=
32-6=
86-40=
84-60=
41+6=
45+0=
50-20=
83-8=
48+0=
89+8=
41+2=
98+0=
91-10=
84+7=
69+5=
71-6=
68-20=
21-8=
21+8=
96-20=
57-9=
45+3
54+6=
58+4=
65-60=
90-30=
90+0=
27-0=
37+4=
42-8=
61-30=
16-8=
71-20=
13-6=
36+4=
54+7=
78+1=
71-9=
66-8=
94+0=
39+2=
65-40=
47-9=
31+8=
85-50=
32+8=
41-0=
88-30=
31-3=
86+0=
48+2=
40+50=
43-20=
73-50=
23+9=
37+5=
83-60=
62-40=
92-4=
87-9=
78+2=
84+0=
52-40=
91-4=
63-20=
14