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
98 - 49 = 49
61 - 8 = 53
72 - 36 = 36
90 - 48 = 42
76 - 7 = 69
88 - 79 = 9
1 × 5 = 5
2 + 3 = 5