文档介绍：29-22=
14-6=
11-2=
29-13=
26-12=
27-16=
30-9=
28-20=
16-9=
12+17=
9-3=
11+16=
12+18=
21-6=
26-18=
29-12=
=
29-15=
25-24=
28-18=
20-7=
7+5=
11-6=
15-8=
23-22=
14-6=
15-9=
13-8=
24-5=
27-16=
16-7=
27-23=
29-24=
12+17=
25-16=
26-11=
25-19=
21-6=
30-12=
11+15=
24-14=
13+16=
25-9=
28-19=
22-9=
20-3=
23-14=
26-24=
30-3=
15+15=
25-7=
27-15=
20-1=
9+15=
21-15=
20-6=
12-6=
11-3=
28-23=
13+15=
12-5=
23-5=
30-2=
30-10=
28-27=
20-14=
29-14=
13+17=
30-25=
13-5=
22-18=
7+5=
30-9=
11+16=
7+8=
14-6=
9-3=
29-12=
13+13=
27-16=
26-18=
21-20=
29-22=
12+17=
27-14=
22-3=
26-12=
21-6=
29-26=
11+18=
16-9=
13+16=
28-13=
8+19=
12+18=
20-3=
30-19=
20-15=
20-12=
15+15=
27-10=
23-8=
13-6=
9+15=
22-17=
18-9=
17-9=
11-3=
21-10=
24-13=
30-4=
23-5=
12-8=
25-8=
24-7=
20-14=
21-14=
28-12=
30-6=
13-5=
7+9=
23-9=
23-20=
22-18=
12+13=
22-20=
27-20=
7+8=
22-8=
19-10=
26-17=
13+13=
12+14=
22-11=
27-22=
29-18=
29-28=
29-27=
12-4=
25-22=
25-17=
24-11=
27-12=
21-5=
26-13=
8+9=
26-25=
26-14=
22-7=
30-18=
22-15=
22-14=
20-8=
27-19=
27-17=
20-2=
29-11=
22-12=
15-7=
12+12=
24-10=
24-22=
17-4=
20-13=
28-21=
14+14=
21-17=
21-4=
8+20=
22-5=
12-7=
23-12=
29-13=
14+15=
29-15=
11-2=
28-20=
26-8=
29-22=
22-19=
24-19=
29-25=
20-18=
30-28=
25-13=
25-14=
29-16=
23-11=
23-15=
24-20=
30-1=
24-15=
12-9=
9+9=
23-19=
26-9=
30-7=
11+13=
25-22=
27-13=
30-13=
29-19=
30-17=
30-16=
30-14=
9+16=
27-26=
27-18=
24-6=
11-9=
28-9=
21-12=
14-7=
21-19=
26-19=
12-3=
11+12=
30-27=
30-11=
29-17=
25-15=
23-10=
28-14=
25-23=
14-8=
20-16=
13-7=
23-21=
29-21=
24-8=
25-11=
12+15=
27-24=
24-9=
21-11=
21-16=
26-15=
9-4=
28-10=
28-11=
27-9=
30-15=
27-11=
24-16=
23-7=
27-21=
25-10=
21-7=
11-4=
28-16=
22-6=
30-29=
21-8=
11+11=
11-7=
26-23=
28-15=
22-10=
30-23=
20-19=
23-13=
20-4=
30-24=
21-