15 加法 1 等于多少?
15 + 1 = 16
15加法1 等于 16
竖式演算
验算
- 用减法验算:16 − 1 = 15
- 用减法验算:16 − 15 = 1
相关题目
15 + 2 = 17
15 + 3 = 18
15 + 4 = 19
15 + 5 = 20
15 + 6 = 21
15 + 7 = 22
15 + 8 = 23
15 + 9 = 24
14 + 1 = 15
16 + 1 = 17
13 + 1 = 14
17 + 1 = 18
12 + 1 = 13
18 + 1 = 19
11 + 1 = 12
19 + 1 = 20
1 + 15 = 16
2 + 14 = 16
3 + 13 = 16
4 + 12 = 16
5 + 11 = 16
6 + 10 = 16
61 + 21 = 82
41 + 2 = 43
8 + 41 = 49
20 + 35 = 55
10 + 82 = 92
100 + 18 = 118
29 - 13 = 16
18 - 2 = 16