20 减法 15 等于多少？
20 - 15 = 5
20减法15 等于 5
竖式演算
验算
- 用加法验算：5 + 15 = 20
相关题目
20 - 14 = 6
20 - 16 = 4
20 - 13 = 7
20 - 17 = 3
20 - 12 = 8
20 - 18 = 2
20 - 11 = 9
20 - 19 = 1
19 - 15 = 4
21 - 15 = 6
18 - 15 = 3
22 - 15 = 7
17 - 15 = 2
23 - 15 = 8
16 - 15 = 1
24 - 15 = 9
6 - 1 = 5
7 - 2 = 5
8 - 3 = 5
9 - 4 = 5
10 - 5 = 5
11 - 6 = 5
41 - 15 = 26
52 - 24 = 28
63 - 24 = 39
84 - 16 = 68
64 - 45 = 19
63 - 8 = 55
2 + 3 = 5
4 + 1 = 5