3 加法 77 等于多少？
3 + 77 = 80
3加法77 等于 80
竖式演算
验算
- 用减法验算：80 − 77 = 3
- 用减法验算：80 − 3 = 77
相关题目
3 + 76 = 79
3 + 78 = 81
3 + 75 = 78
3 + 79 = 82
3 + 74 = 77
3 + 80 = 83
3 + 73 = 76
3 + 81 = 84
2 + 77 = 79
4 + 77 = 81
1 + 77 = 78
5 + 77 = 82
6 + 77 = 83
7 + 77 = 84
8 + 77 = 85
9 + 77 = 86
1 + 79 = 80
2 + 78 = 80
4 + 76 = 80
5 + 75 = 80
6 + 74 = 80
7 + 73 = 80
42 + 9 = 51
46 + 46 = 92
73 + 55 = 128
37 + 44 = 81
47 + 3 = 50
33 + 86 = 119
89 - 9 = 80
93 - 13 = 80