56 加法 20 等于多少？
56 + 20 = 76
56加法20 等于 76
竖式演算
验算
- 用减法验算：76 − 20 = 56
- 用减法验算：76 − 56 = 20
相关题目
56 + 19 = 75
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56 + 18 = 74
56 + 23 = 79
56 + 17 = 73
56 + 24 = 80
56 + 16 = 72
55 + 20 = 75
57 + 20 = 77
58 + 20 = 78
54 + 20 = 74
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2 + 74 = 76
3 + 73 = 76
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37 + 62 = 99
32 + 47 = 79
14 + 4 = 18
1 + 65 = 66
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79 - 3 = 76