45 加法 78 等于多少?
45 + 78 = 123
45加法78 等于 123
竖式演算
验算
- 用减法验算:123 − 78 = 45
- 用减法验算:123 − 45 = 78
相关题目
45 + 77 = 122
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44 + 78 = 122
46 + 78 = 124
47 + 78 = 125
43 + 78 = 121
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