69 加法 51 等于多少？
69 + 51 = 120
69加法51 等于 120
竖式演算
验算
- 用减法验算：120 − 51 = 69
- 用减法验算：120 − 69 = 51
相关题目
69 + 50 = 119
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69 + 53 = 122
69 + 48 = 117
69 + 54 = 123
69 + 47 = 116
69 + 55 = 124
68 + 51 = 119
70 + 51 = 121
67 + 51 = 118
71 + 51 = 122
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21 + 99 = 120
22 + 98 = 120
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25 + 95 = 120
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89 + 94 = 183
48 + 72 = 120
14 + 87 = 101
16 + 89 = 105
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4 × 30 = 120
30 × 4 = 120