31 减法 22 等于多少？
31 - 22 = 9
31减法22 等于 9
竖式演算
验算
- 用加法验算：9 + 22 = 31
相关题目
31 - 21 = 10
31 - 23 = 8
31 - 20 = 11
31 - 24 = 7
31 - 19 = 12
31 - 25 = 6
31 - 26 = 5
31 - 18 = 13
32 - 22 = 10
30 - 22 = 8
33 - 22 = 11
29 - 22 = 7
34 - 22 = 12
28 - 22 = 6
35 - 22 = 13
27 - 22 = 5
10 - 1 = 9
11 - 2 = 9
12 - 3 = 9
13 - 4 = 9
14 - 5 = 9
15 - 6 = 9
37 - 8 = 29
22 - 8 = 14
73 - 47 = 26
82 - 13 = 69
90 - 5 = 85
73 - 48 = 25
3 × 3 = 9
6 + 3 = 9