40 减法 31 等于多少?
40 - 31 = 9
40减法31 等于 9
竖式演算
验算
- 用加法验算:9 + 31 = 40
相关题目
40 - 30 = 10
40 - 32 = 8
40 - 29 = 11
40 - 33 = 7
40 - 28 = 12
40 - 34 = 6
40 - 35 = 5
40 - 27 = 13
41 - 31 = 10
39 - 31 = 8
42 - 31 = 11
38 - 31 = 7
43 - 31 = 12
37 - 31 = 6
44 - 31 = 13
36 - 31 = 5
10 - 1 = 9
11 - 2 = 9
12 - 3 = 9
13 - 4 = 9
14 - 5 = 9
15 - 6 = 9
61 - 52 = 9
35 - 8 = 27
86 - 19 = 67
66 - 8 = 58
41 - 2 = 39
70 - 42 = 28
6 + 3 = 9
3 + 6 = 9