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
1.2 + 0 = 2
2.5 + 3 = 8
3.7 + 3 - 4 = 6
4.1 + 1 = 2
5.0 + 2 - 1 = 1
6.8 + 1 = 9
7.5 - 2 = 3
8.3 + 1 + 6 = 10
9.1 - 0 = 1
10.5 + 1 = 6
11.0 - 0 - 0 = 0
12.1 + 3 = 4
13.3 - 0 = 3
14.3 + 5 - 7 = 1
15.7 + 1 = 8
16.5 + 2 = 7
17.16 - 4 = 12
18.19 - 11 - 10 = -2
19.1 + 1 + 5 = 7
20.5 + 9 - 4 = 10
21.9 - 2 - 1 = 6
22.4 + 0 = 4
23.2 + 5 + 2 = 9
24.1 + 6 = 7
25.0 + 9 - 8 = 1
26.5 + 0 = 5
27.7 - 6 = 1
28.3 + 6 - 8 = 1
29.2 + 5 + 8 = 15
30.8 - 0 - 0 = 8
31.1 + 1 = 2
32.4 + 5 - 1 = 8
33.4 + 3 = 7
34.16 + 9 = 25
35.6 + 1 = 7
36.13 + 7 = 6
37.3 - 2 - 0 = 1
38.4 + 2 + 1 = 7
39.9 + 0 = 9