1 加法 15 等于多少？
1 + 15 = 16
1加法15 等于 16
竖式演算
验算
- 用减法验算：16 − 15 = 1
- 用减法验算：16 − 1 = 15
相关题目
1 + 14 = 15
1 + 16 = 17
1 + 13 = 14
1 + 17 = 18
1 + 12 = 13
1 + 18 = 19
1 + 11 = 12
1 + 19 = 20
2 + 15 = 17
3 + 15 = 18
4 + 15 = 19
5 + 15 = 20
6 + 15 = 21
7 + 15 = 22
8 + 15 = 23
9 + 15 = 24
2 + 14 = 16
3 + 13 = 16
4 + 12 = 16
5 + 11 = 16
6 + 10 = 16
7 + 9 = 16
12 + 11 = 23
23 + 53 = 76
2 + 96 = 98
81 + 11 = 92
2 + 37 = 39
46 + 32 = 78
87 - 71 = 16
61 - 45 = 16