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
1.5 + 8 + 4 = 17
2.12 + 10 = 22
3.3 + 1 + 0 = 4
4.1 + 3 + 6 = 10
5.5 + 0 - 2 = 3
6.3 - 0 = 3
7.14 - 9 = 23
8.9 + 8 + 5 = 22
9.13 + 4 = 17
10.7 + 2 - 5 = 4
11.2 + 4 - 5 = 1
12.6 + 1 + 9 = 16
13.7 + 9 + 8 = 24
14.6 + 2 - 7 = 1
15.2 + 2 - 5 = -1
16.2 + 1 = 3
17.4 + 8 - 0 = 12
18.18 - 14 - 6 = -2
19.6 + 9 + 8 = 23
20.14 - 8 - 2 = 4
21.5 + 9 + 7 = 21
22.0 + 1 - 0 = 1
23.16 - 12 - 3 = 1
24.0 + 8 - 4 = 4
25.2 + 7 + 2 = 11
26.4 - 3 = 1
27.14 + 6 = 8
28.14 + 2 = 16
29.8 + 1 = 9
30.0 - 0 - 0 = 0
31.9 + 0 - 2 = 7
32.14 + 4 = 18
33.6 + 2 - 0 = 8
34.4 + 8 - 6 = 6
35.10 - 2 - 0 = 8
36.0 + 8 + 1 = 9
37.13 + 1 = 14
38.1 - 0 = 1
39.2 + 5 = 7