11~20的加减法+20以内加法（进位） 计算题
1.10 + 5 = 15
2.15 - 4 = 11
3.13 + 9 = 22
4.14 + 4 = 18
5.16 + 4 = 20
6.14 - 0 = 14
7.14 + 7 = 7
8.12 + 4 = 16
9.17 + 5 = 22
10.19 + 1 = 20
11.13 + 5 = 18
12.17 + 3 = 20
13.16 + 3 = 19
14.18 + 4 = 22
15.14 + 2 = 16
16.12 + 4 = 16
17.19 - 4 = 15
18.14 + 0 = 14
19.12 + 5 = 7
20.19 - 1 = 18
21.18 - 2 = 16
22.14 - 6 = 20
23.16 - 8 = 8
24.17 + 6 = 23
25.16 + 2 = 18
26.17 + 2 = 19
27.18 + 1 = 19
28.15 + 8 = 23
29.15 - 3 = 12
30.18 - 0 = 18
31.12 + 3 = 9
32.13 + 3 = 10
33.12 + 7 = 19
34.15 + 6 = 21
35.14 + 1 = 15
36.14 - 4 = 18
37.13 + 5 = 18
38.13 + 7 = 20
39.15 + 3 = 18