10以内连加+10以内连减+10以内加减混合+11~20的加减法+20以内加法（进位） 口算题打印
1.12 - 3 - 2 = 7
2.13 + 9 = 22
3.1 + 5 + 8 = 14
4.14 + 1 = 13
5.8 + 9 + 6 = 23
6.12 + 5 = 17
7.13 + 8 = 21
8.11 - 0 = 11
9.6 + 1 - 9 = -2
10.15 + 3 = 18
11.13 - 10 - 2 = 1
12.12 + 3 = 9
13.4 + 5 + 2 = 11
14.19 - 3 - 2 = 14
15.1 + 5 - 4 = 2
16.14 + 1 = 15
17.3 - 2 - 1 = 0
18.6 + 1 + 2 = 9
19.19 - 5 - 0 = 14
20.14 - 3 - 2 = 9
21.20 - 5 = 25
22.10 + 2 = 12
23.19 + 1 = 18
24.12 - 5 = 7
25.1 + 2 + 6 = 9
26.17 - 5 = 12
27.19 + 10 = 29
28.13 + 3 = 16
29.6 + 3 - 8 = 1
30.6 + 1 - 2 = 5
31.0 + 9 + 8 = 17
32.4 + 1 + 8 = 13
33.4 + 2 + 1 = 7
34.5 + 7 + 8 = 20
35.19 + 2 = 21
36.19 + 8 = 27
37.17 - 15 - 5 = -3
38.0 + 9 + 9 = 18
39.14 + 7 = 21