1 加法 77 等于多少？
1 + 77 = 78
1加法77 等于 78
竖式演算
验算
- 用减法验算：78 − 77 = 1
- 用减法验算：78 − 1 = 77
相关题目
1 + 76 = 77
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1 + 80 = 81
1 + 73 = 74
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2 + 77 = 79
3 + 77 = 80
4 + 77 = 81
5 + 77 = 82
6 + 77 = 83
7 + 77 = 84
8 + 77 = 85
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3 + 75 = 78
4 + 74 = 78
5 + 73 = 78
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100 + 12 = 112
43 + 5 = 48
32 + 57 = 89
50 + 8 = 58
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93 - 15 = 78