18 加法 1 等于多少？
18 + 1 = 19
18加法1 等于 19
竖式演算
验算
- 用减法验算：19 − 1 = 18
- 用减法验算：19 − 18 = 1
相关题目
18 + 2 = 20
18 + 3 = 21
18 + 4 = 22
18 + 5 = 23
18 + 6 = 24
18 + 7 = 25
18 + 8 = 26
18 + 9 = 27
17 + 1 = 18
19 + 1 = 20
20 + 1 = 21
16 + 1 = 17
21 + 1 = 22
15 + 1 = 16
22 + 1 = 23
14 + 1 = 15
1 + 18 = 19
2 + 17 = 19
3 + 16 = 19
4 + 15 = 19
5 + 14 = 19
6 + 13 = 19
12 + 42 = 54
42 + 42 = 84
42 + 34 = 76
10 + 75 = 85
2 + 93 = 95
10 + 69 = 79
98 - 79 = 19
100 - 81 = 19