11~20的加减法+20以内加法（进位） 计算题
1.18 + 4 = 22
2.14 + 3 = 17
3.14 + 1 = 15
4.19 + 0 = 19
5.14 + 9 = 23
6.11 + 4 = 15
7.16 + 6 = 22
8.20 + 5 = 25
9.11 + 7 = 18
10.11 - 8 = 19
11.11 + 4 = 15
12.11 + 1 = 12
13.19 + 1 = 20
14.14 + 5 = 19
15.18 + 7 = 25
16.13 + 7 = 20
17.14 + 8 = 22
18.15 + 0 = 15
19.12 - 6 = 18
20.10 + 5 = 15
21.16 + 2 = 18
22.17 + 3 = 20
23.14 + 7 = 21
24.14 + 9 = 23
25.13 - 3 = 16
26.16 - 2 = 14
27.11 + 6 = 17
28.15 + 10 = 25
29.13 + 8 = 21
30.16 + 4 = 12
31.16 + 7 = 23
32.20 + 6 = 26
33.14 + 3 = 11
34.16 + 2 = 18
35.14 - 7 = 21
36.19 + 0 = 19
37.14 + 4 = 10
38.13 - 2 = 15
39.17 + 5 = 22
40.14 + 7 = 21
41.17 + 3 = 20
42.17 - 5 = 12
43.16 + 1 = 17
44.11 + 10 = 21
45.13 - 7 = 20
46.15 - 5 = 20
47.13 - 7 = 6
48.15 + 5 = 10
49.18 + 10 = 28
50.13 + 2 = 15