20 加法 37 等于多少？
20 + 37 = 57
20加法37 等于 57
竖式演算
验算
- 用减法验算：57 − 37 = 20
- 用减法验算：57 − 20 = 37
相关题目
20 + 38 = 58
20 + 36 = 56
20 + 39 = 59
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20 + 40 = 60
20 + 34 = 54
20 + 41 = 61
20 + 33 = 53
19 + 37 = 56
21 + 37 = 58
22 + 37 = 59
18 + 37 = 55
23 + 37 = 60
17 + 37 = 54
24 + 37 = 61
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2 + 55 = 57
3 + 54 = 57
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45 + 23 = 68
13 + 14 = 27
73 + 13 = 86
93 + 3 = 96
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69 - 12 = 57