11~20的加减法+20以内加法（进位）+3位数乘2位数+除数是两位数的除法 计算题
1.17 + 2 = 19
2.11 - 3 = 8
3.865 × 56 = 48440
4.188 × 32 = 6016
5.202 ÷ 70 = 2.89
6.481 × 34 = 16354
7.979 × 25 = 24475
8.181 ÷ 75 = 2.41
9.649 ÷ 79 = 8.22
10.12 - 8 = 4
11.399 × 21 = 8379
12.217 × 14 = 3038
13.599 ÷ 99 = 6.05
14.854 × 59 = 50386
15.195 ÷ 20 = 9.75
16.318 ÷ 48 = 6.63
17.387 × 35 = 13545
18.381 ÷ 90 = 4.23
19.20 - 4 = 24
20.137 ÷ 13 = 10.54
21.14 + 5 = 9
22.967 × 97 = 93799
23.934 ÷ 12 = 77.83
24.11 - 4 = 15
25.13 - 8 = 5
26.10 + 2 = 12
27.19 + 4 = 15
28.914 × 79 = 72206
29.163 × 13 = 2119
30.133 ÷ 47 = 2.83
31.742 ÷ 71 = 10.45
32.17 + 2 = 19
33.469 ÷ 76 = 6.17
34.17 + 4 = 21
35.17 - 0 = 17
36.422 ÷ 85 = 4.96
37.17 + 10 = 27
38.14 + 6 = 20
39.18 + 8 = 26