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
1.6 + 0 - 1 = 5
2.19 + 9 = 28
3.5 + 3 + 6 = 14
4.0 - 0 - 0 = 0
5.5 - 3 = 2
6.4 - 2 - 1 = 1
7.6 + 2 = 8
8.13 - 1 - 0 = 12
9.6 - 2 - 0 = 4
10.5 + 0 - 3 = 2
11.17 - 4 - 0 = 13
12.9 + 1 - 0 = 10
13.10 - 3 - 1 = 6
14.1 + 6 + 9 = 16
15.8 + 1 = 9
16.7 + 7 + 3 = 17
17.5 + 0 - 4 = 1
18.2 + 0 + 4 = 6
19.1 - 0 = 1
20.7 + 2 = 9
21.2 + 7 = 9
22.9 - 8 = 1
23.3 + 5 = 8
24.6 + 0 + 1 = 7
25.0 - 0 = 0
26.2 - 1 = 1
27.5 + 3 = 8
28.8 + 1 - 0 = 9
29.5 + 9 - 0 = 14
30.14 - 9 = 23
31.13 - 5 = 18
32.2 + 2 - 1 = 3
33.16 - 8 = 24
34.2 - 0 = 2
35.3 + 2 = 5
36.1 + 3 + 3 = 7
37.2 + 4 = 6
38.15 + 1 = 16
39.17 + 10 = 27