31 减法 17 等于多少？
31 - 17 = 14
31减法17 等于 14
竖式演算
验算
- 用加法验算：14 + 17 = 31
相关题目
31 - 16 = 15
31 - 18 = 13
31 - 15 = 16
31 - 19 = 12
31 - 20 = 11
31 - 14 = 17
31 - 21 = 10
31 - 13 = 18
30 - 17 = 13
32 - 17 = 15
29 - 17 = 12
33 - 17 = 16
28 - 17 = 11
34 - 17 = 17
27 - 17 = 10
35 - 17 = 18
15 - 1 = 14
16 - 2 = 14
17 - 3 = 14
18 - 4 = 14
19 - 5 = 14
20 - 6 = 14
44 - 9 = 35
70 - 68 = 2
93 - 26 = 67
70 - 4 = 66
92 - 63 = 29
26 - 18 = 8
12 + 2 = 14
11 + 3 = 14