20 加法 34 等于多少？
20 + 34 = 54
20加法34 等于 54
竖式演算
验算
- 用减法验算：54 − 34 = 20
- 用减法验算：54 − 20 = 34
相关题目
20 + 33 = 53
20 + 35 = 55
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20 + 36 = 56
20 + 31 = 51
20 + 37 = 57
20 + 38 = 58
20 + 30 = 50
19 + 34 = 53
21 + 34 = 55
22 + 34 = 56
18 + 34 = 52
23 + 34 = 57
17 + 34 = 51
24 + 34 = 58
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2 + 52 = 54
3 + 51 = 54
4 + 50 = 54
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6 + 48 = 54
26 + 61 = 87
30 + 32 = 62
26 + 43 = 69
4 + 93 = 97
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66 - 12 = 54