20 加法 23 等于多少？
20 + 23 = 43
20加法23 等于 43
竖式演算
验算
- 用减法验算：43 − 23 = 20
- 用减法验算：43 − 20 = 23
相关题目
20 + 22 = 42
20 + 24 = 44
20 + 21 = 41
20 + 25 = 45
20 + 20 = 40
20 + 26 = 46
20 + 19 = 39
20 + 27 = 47
19 + 23 = 42
21 + 23 = 44
22 + 23 = 45
18 + 23 = 41
23 + 23 = 46
17 + 23 = 40
24 + 23 = 47
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1 + 42 = 43
2 + 41 = 43
3 + 40 = 43
4 + 39 = 43
5 + 38 = 43
6 + 37 = 43
10 + 73 = 83
25 + 73 = 98
32 + 50 = 82
7 + 1 = 8
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74 + 10 = 84
72 - 29 = 43
75 - 32 = 43