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 + 4 = 9
2.16 - 15 - 12 = -11
3.0 - 0 = 0
4.8 + 0 = 8
5.3 + 2 - 6 = -1
6.13 + 3 = 16
7.7 + 2 = 9
8.1 + 2 - 3 = 0
9.15 + 6 = 21
10.2 + 8 - 3 = 7
11.13 + 7 = 20
12.6 + 4 - 6 = 4
13.14 - 9 = 23
14.7 - 6 = 1
15.12 + 7 = 19
16.11 - 8 = 19
17.10 + 7 = 17
18.17 - 3 = 14
19.13 + 9 = 22
20.18 + 1 = 19
21.10 - 5 - 0 = 5
22.3 - 0 - 0 = 3
23.6 - 3 - 1 = 2
24.4 - 2 = 2
25.13 - 12 - 9 = -8
26.0 + 0 + 0 = 0
27.9 + 0 - 3 = 6
28.0 + 2 - 1 = 1
29.0 + 3 - 5 = -2
30.9 + 1 - 1 = 9
31.0 + 2 - 0 = 2
32.2 - 0 = 2
33.4 + 1 = 5
34.0 - 0 = 0
35.13 + 8 = 21
36.11 + 8 = 19
37.6 + 0 = 6
38.7 + 1 - 9 = -1
39.6 - 5 = 1