23 加法 20 等于多少？
23 + 20 = 43
23加法20 等于 43
竖式演算
验算
- 用减法验算：43 − 20 = 23
- 用减法验算：43 − 23 = 20
相关题目
23 + 19 = 42
23 + 21 = 44
23 + 22 = 45
23 + 18 = 41
23 + 23 = 46
23 + 17 = 40
23 + 24 = 47
23 + 16 = 39
22 + 20 = 42
24 + 20 = 44
21 + 20 = 41
25 + 20 = 45
20 + 20 = 40
26 + 20 = 46
19 + 20 = 39
27 + 20 = 47
1 + 42 = 43
2 + 41 = 43
3 + 40 = 43
4 + 39 = 43
5 + 38 = 43
6 + 37 = 43
2 + 1 = 3
26 + 70 = 96
30 + 4 = 34
45 + 4 = 49
13 + 22 = 35
36 + 20 = 56
66 - 23 = 43
62 - 19 = 43