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
1.10 + 3 = 13
2.5 + 3 - 5 = 3
3.2 + 8 + 0 = 10
4.0 + 0 - 0 = 0
5.5 - 4 = 1
6.7 + 2 - 4 = 5
7.2 - 1 = 1
8.1 - 0 = 1
9.10 - 2 - 0 = 8
10.0 + 0 + 1 = 1
11.0 + 7 - 8 = -1
12.4 + 5 - 6 = 3
13.9 + 0 - 3 = 6
14.16 + 4 = 20
15.19 - 7 = 12
16.15 - 7 = 8
17.0 + 6 - 5 = 1
18.10 - 5 - 0 = 5
19.18 + 7 = 25
20.8 + 1 - 8 = 1
21.8 + 4 - 3 = 9
22.3 + 4 = 7
23.17 + 0 = 17
24.18 - 1 - 0 = 17
25.8 + 1 = 9
26.5 + 2 - 4 = 3
27.14 + 2 = 16
28.2 + 5 - 3 = 4
29.13 - 10 - 8 = -5
30.6 - 4 - 2 = 0
31.10 - 5 - 1 = 4
32.13 - 2 = 15
33.8 + 1 = 9
34.5 - 2 = 3
35.2 + 6 + 3 = 11
36.3 + 5 = 8
37.15 - 8 = 23
38.2 + 4 - 5 = 1
39.5 + 3 - 0 = 8