文档介绍：3+8=
6+9=
13-7=
5+8=
14-6=
11-6=
8+7=
16-9=
4+7=
18-4=
11-5=
6+2=
9+5=
14-6=
14-8=
6+6=
7+11=
16+0=
11-8=
14-3=
18-7=
8+9=
13-4=
10+4=
15-7=
9+5=
11-7=
14-5=
12+2=
17-9=
1+14=
16-9=
8+8=
16-6=
5+7=
9+5=
11-7=
14-5=
12+2=
1+14=
16-7=
8+8=
16-6=
5+7=
18-8=
2+9=
18-5=
9-2=
7+3=
3+15=
2+14=
8+7=
10-7=
5+7=
16-5=
4+9=
7+4=
17-6=
3+17=
15-2=
8+9=
2+9=
17-7=
2+6=
16-7=
18-4=
14-8=
10+6=
18-9=
4+16=
11-2=
13+3=
8+9=
11-3=
11+8=
12-7=
8+7=
16-5=
10+8=
9-6=
2+9=
6+9=
9+7=
10-5=
8-7=
5+9=
12-8=
15-3=
7+5=
15-9=
10-2=
7+9=
11-7=
15-6=
11+8=
13-6=
16-8=
12+7=
13-6=
16-8=
12-4=
9+10=
14-6=
13+3=
18-9=
12+7=
9-3=
11-4=
8+7=
12-9=
9+4=
13+6=
19-4=
11-9=
14+3=
19-8=
7+6=
15-6=
14-8=
10+2=
12+6=
7-7=
8+4=
5+9=
2+16=
18-9=
5+7=
12-4=
5+8=
4+12=
12-8=
6+7=
11-6=
6+9=
2+18= 18-6= 16-1=
19-8=
9+10=
15-6=
13+3=
19-8=
12-6=
1+7=
19-4=
13+4=
12-3=
18-6=
9-6=
12+3=
7-2=
8+5=
13-5=
3+9=
17-9=
4+8=
12-6=
6+9=
12-6=
6+7=
12-8=
4+12=
7+7=
12-4=
5+7=
18-9=
3+15=
9-6=
14-5=
7-2=
8+6=
12-3=
17-8=
8+9=
13-4=
4+7=
8-7=
5+9=
13-8=
8+6=
15-3=
12-5=
7+5=
13-9=
13-5=
8-7=
5+9=
13-7=
8+9=
15+3=
13-4=
7+5=
16-9=
12-3=
7+9=
12-7=
15-8=
13+6=
11-3=
19-5=
14+6=
14-7=
9+4=
13-9=
8+7=
11-4=
9-3=
13-7=
18-5=
3+5=
2+16=
17-7=
12-2=
9+3=
19-8=
14-2=
18-9=
9+6=
4+9=
5+8=
10-9=
7+9=
8-5=
8+7=
5+14=
14-8=
19-6=
9-6=
18-9=
5+7=
8+12=
9-3=
12-5=
9+8=
10-9=
12-9=
11-6=
6+6=
19-7=
15-5=
11+7=
8+7=
2+12= 5+11= 17-7=
5+1= 10-1= 12+5=
11-2= 15+1= 19-11=
10+9= 16-7= 2+15=
9+5= 2+10= 1+12=
19-6= 15-2= 9+1=
14-1= 5+2= 13+7=
19-4= 3+5= 17+3=
14+3= 17-3= 9-4=
6+13= 13+5= 3+7=
16-15= 15+3= 9-4=
20-1= 11-1= 6+8=
2+5= 2+6= 10+1=
17-6= 13+4= 20-1=
1+2= 20-3= 2+7=
3+8= 8+4= 17+3=
17-3= 4+12= 14+3=
1+14= 1+5= 3+14=
13-3= 10+2= 9-8=
12-8= 2+5= 19-8=
7+7= 8+6= 9