97 加法 42 等于多少？
97 + 42 = 139
97加法42 等于 139
竖式演算
验算
- 用减法验算：139 − 42 = 97
- 用减法验算：139 − 97 = 42
相关题目
97 + 41 = 138
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97 + 38 = 135
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96 + 42 = 138
98 + 42 = 140
95 + 42 = 137
99 + 42 = 141
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41 + 98 = 139
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