78 加法 3 等于多少？
78 + 3 = 81
78加法3 等于 81
竖式演算
验算
- 用减法验算：81 − 3 = 78
- 用减法验算：81 − 78 = 3
相关题目
78 + 2 = 80
78 + 4 = 82
78 + 1 = 79
78 + 5 = 83
78 + 6 = 84
78 + 7 = 85
78 + 8 = 86
78 + 9 = 87
77 + 3 = 80
79 + 3 = 82
76 + 3 = 79
80 + 3 = 83
75 + 3 = 78
81 + 3 = 84
74 + 3 = 77
82 + 3 = 85
1 + 80 = 81
2 + 79 = 81
3 + 78 = 81
4 + 77 = 81
5 + 76 = 81
6 + 75 = 81
72 + 61 = 133
58 + 15 = 73
94 + 94 = 188
53 + 56 = 109
14 + 28 = 42
72 + 31 = 103
96 - 15 = 81
83 - 2 = 81