69 加法 59 等于多少？
69 + 59 = 128
69加法59 等于 128
竖式演算
验算
- 用减法验算：128 − 59 = 69
- 用减法验算：128 − 69 = 59
相关题目
69 + 58 = 127
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68 + 59 = 127
70 + 59 = 129
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29 + 99 = 128
30 + 98 = 128
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2 × 64 = 128
16 × 8 = 128