20 以内加法
日期：___________
姓名：___________
用时：___________
成绩：___________
3 + 13 =
13 + 5 =
6 + 14 =
5 + 12 =
0 + 9 =
19 + 0 =
3 + 6 =
19 + 0 =
3 + 6 =
6 + 1 =
14 + 1 =
2 + 9 =
10 + 0 =
2 + 8 =
17 + 0 =
0 + 9 =
14 + 0 =
5 + 7 =
10 + 8 =
4 + 14 =