20 加法 18 等于多少？
20 + 18 = 38
20加法18 等于 38
竖式演算
验算
- 用减法验算：38 − 18 = 20
- 用减法验算：38 − 20 = 18
相关题目
20 + 17 = 37
20 + 19 = 39
20 + 20 = 40
20 + 16 = 36
20 + 21 = 41
20 + 15 = 35
20 + 22 = 42
20 + 14 = 34
19 + 18 = 37
21 + 18 = 39
22 + 18 = 40
18 + 18 = 36
23 + 18 = 41
17 + 18 = 35
24 + 18 = 42
16 + 18 = 34
1 + 37 = 38
2 + 36 = 38
3 + 35 = 38
4 + 34 = 38
5 + 33 = 38
6 + 32 = 38
23 + 25 = 48
70 + 24 = 94
24 + 62 = 86
7 + 21 = 28
6 + 3 = 9
45 + 2 = 47
81 - 43 = 38
71 - 33 = 38