文档介绍：小学一年级 20 以内口算练****题
10+9=
13-4=
14-7=
8+5=
6+8=
8+4=
19-10=
12-6=
4+8=
5+8
13-6=
14-8=
13-6=
13-4=
12-7=
12-5=
13-6=
7+6=
8+7=
11-7=
13-4=
8+3=
9+3=
12-9=
17-9=
6+8=
7+8=
11-8=
5/15
8+4=
12-7=
5+6=
13-6=
11-8=
6+8=
12-7=
8+7=
12-6=
4+7=
9+3=
7+8=
16-7=
20-8=
9+8=
6+7=
8+5=
13-9=
15-7=
18-9=
6/15
11-4=
11-5=
13-8=
15-7=
11-7=
6+8=
8+4=
13-6=
7+6=
9+5=
15-9=
6+5=
11-3=
7+8=
5+7=
12-6=
8+3=
14-9=
7+5=
11-8=
7/15
6+5=
8+6=
8+3=
7+4=
12-8=
11-9=
11-7=
12-4=
12-9=
17-9=
8+5=
7+6=
12-7=
11-6=
11-8=
5+7=
13-6=
8+5=
3+9=
12-7=
8/15
12-8=
9+7=
4+9=
6+8=
4+7=
15-9=
8+6=
7+4=
12-8=
11-4=
7+5=
8+3=
13-8=
14-9=
4+8=
7+6=
9+3=
11-7=
12-5=
8+6=
9/15
7+4=
3+7=
13-6=
14-8=
13-7=
13-4=
12-7=
12-5=
13-6=
7+6=
8+7=
11-7=
13-4=
8+3=
9+3=
12-9=
17-9=
6+8=
7+8=
11-8=
10/15
15-7=
11-7=
6+8=
8+4=
13-6=
7+6=
9+5=
15-9=
6+5=
11-3=
7+8=
5+7=
12-6=
8+3=
14-9=
7+5=
11-8=
6+5=
8+6=
8+3=
11/15
7+4=
12-8=
11-9=
11-7=
12-4=
12-9=
17-9=
8+5=
7+6=
12-7=
7+4=
12-8=
11-7=
7+5=
3+8=
13-8=
14-9=
3+8=
7+6=
3+9=
12/15