77 加法 1 等于多少？
77 + 1 = 78
77加法1 等于 78
竖式演算
验算
- 用减法验算：78 − 1 = 77
- 用减法验算：78 − 77 = 1
相关题目
77 + 2 = 79
77 + 3 = 80
77 + 4 = 81
77 + 5 = 82
77 + 6 = 83
77 + 7 = 84
77 + 8 = 85
77 + 9 = 86
76 + 1 = 77
78 + 1 = 79
75 + 1 = 76
79 + 1 = 80
74 + 1 = 75
80 + 1 = 81
73 + 1 = 74
81 + 1 = 82
1 + 77 = 78
2 + 76 = 78
3 + 75 = 78
4 + 74 = 78
5 + 73 = 78
6 + 72 = 78
22 + 64 = 86
15 + 54 = 69
4 + 13 = 17
46 + 30 = 76
5 + 51 = 56
38 + 11 = 49
89 - 11 = 78
2 × 39 = 78