20 以内加法
日期：___________
姓名：___________
用时：___________
成绩：___________
16 + 1 =
20 + 0 =
0 + 11 =
16 + 1 =
18 + 1 =
1 + 5 =
18 + 1 =
19 + 1 =
13 + 6 =
17 + 1 =
20 + 0 =
20 + 0 =
5 + 14 =
17 + 3 =
20 + 0 =
15 + 0 =
8 + 2 =
9 + 8 =
3 + 15 =
6 + 11 =