20以内加法（进位） 计算题
1.10 + 7 = 17
2.10 + 6 = 16
3.15 + 1 = 16
4.13 + 6 = 19
5.15 + 4 = 19
6.12 + 9 = 21
7.18 + 2 = 20
8.16 + 7 = 23
9.11 + 10 = 21
10.17 + 3 = 20
11.10 + 8 = 18
12.18 + 3 = 21
13.10 + 7 = 17
14.14 + 9 = 23
15.11 + 1 = 12
16.12 + 1 = 13
17.19 + 1 = 20
18.13 + 6 = 19
19.10 + 1 = 11
20.12 + 10 = 22
21.14 + 8 = 22
22.16 + 1 = 17
23.19 + 5 = 24
24.17 + 4 = 21
25.14 + 2 = 16
26.13 + 5 = 18
27.15 + 2 = 17
28.10 + 5 = 15
29.19 + 5 = 24
30.16 + 7 = 23
31.19 + 7 = 26
32.19 + 8 = 27
33.15 + 2 = 17
34.18 + 5 = 23
35.10 + 9 = 19
36.14 + 4 = 18
37.16 + 3 = 19
38.19 + 2 = 21
39.17 + 10 = 27