51 加法 69 等于多少？
51 + 69 = 120
51加法69 等于 120
竖式演算
验算
- 用减法验算：120 − 69 = 51
- 用减法验算：120 − 51 = 69
相关题目
51 + 68 = 119
51 + 70 = 121
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51 + 71 = 122
51 + 66 = 117
51 + 72 = 123
51 + 65 = 116
51 + 73 = 124
50 + 69 = 119
52 + 69 = 121
49 + 69 = 118
53 + 69 = 122
48 + 69 = 117
54 + 69 = 123
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20 + 100 = 120
21 + 99 = 120
22 + 98 = 120
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25 + 95 = 120
46 + 96 = 142
87 + 95 = 182
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