11~20的加减法+20以内加法（进位） 口算题打印
1.14 + 4 = 18
2.10 + 3 = 13
3.13 + 5 = 18
4.11 + 1 = 12
5.13 + 4 = 17
6.18 + 5 = 23
7.15 - 2 = 17
8.10 + 4 = 14
9.13 - 1 = 12
10.19 + 5 = 24
11.14 - 4 = 18
12.15 + 5 = 20
13.15 + 10 = 25
14.16 + 4 = 20
15.13 + 3 = 10
16.16 + 9 = 25
17.14 + 4 = 18
18.16 + 7 = 23
19.11 + 2 = 13
20.18 - 4 = 22
21.15 + 0 = 15
22.19 - 7 = 26
23.18 - 1 = 19
24.18 + 9 = 27
25.11 + 5 = 16
26.16 + 8 = 24
27.17 - 9 = 8
28.20 + 7 = 27
29.12 - 0 = 12
30.13 + 8 = 21
31.15 + 7 = 22
32.15 - 8 = 7
33.14 + 7 = 21
34.15 + 7 = 22
35.14 + 6 = 20
36.18 - 4 = 14
37.16 + 0 = 16
38.14 + 10 = 24
39.12 - 9 = 3