10以内的加法+10以内的减法+10以内的加减混合+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） 计算题
1.0 + 9 = 9
2.3 - 0 = 3
3.1 + 9 - 4 = 6
4.6 + 2 - 0 = 8
5.14 + 1 = 15
6.3 + 9 + 0 = 12
7.7 + 1 - 3 = 5
8.3 + 4 - 1 = 6
9.11 + 7 = 18
10.11 + 1 = 12
11.7 - 6 = 1
12.6 - 4 = 2
13.9 - 0 - 0 = 9
14.15 - 2 = 17
15.1 - 0 - 0 = 1
16.5 - 1 - 0 = 4
17.7 + 1 = 8
18.2 + 5 - 4 = 3
19.2 + 6 - 1 = 7
20.6 + 1 - 5 = 2
21.18 + 8 = 26
22.5 + 5 + 4 = 14
23.16 + 1 = 17
24.4 + 0 = 4
25.8 + 0 = 8
26.6 + 9 - 8 = 7
27.3 - 0 = 3
28.17 - 16 - 11 = -10
29.17 - 1 = 16
30.2 + 3 + 1 = 6
31.5 + 9 - 0 = 14
32.7 + 1 + 8 = 16
33.18 - 7 = 11
34.0 + 9 + 5 = 14
35.8 - 0 - 0 = 8
36.12 + 3 = 15
37.1 + 6 - 6 = 1
38.11 + 10 = 21
39.0 + 7 - 0 = 7