1 加法 79 等于多少？
1 + 79 = 80
1加法79 等于 80
竖式演算
验算
- 用减法验算：80 − 79 = 1
- 用减法验算：80 − 1 = 79
相关题目
1 + 78 = 79
1 + 80 = 81
1 + 77 = 78
1 + 81 = 82
1 + 76 = 77
1 + 82 = 83
1 + 83 = 84
1 + 75 = 76
2 + 79 = 81
3 + 79 = 82
4 + 79 = 83
5 + 79 = 84
6 + 79 = 85
7 + 79 = 86
8 + 79 = 87
9 + 79 = 88
2 + 78 = 80
3 + 77 = 80
4 + 76 = 80
5 + 75 = 80
6 + 74 = 80
7 + 73 = 80
12 + 68 = 80
35 + 59 = 94
79 + 17 = 96
56 + 91 = 147
53 + 56 = 109
65 + 28 = 93
97 - 17 = 80
80 × 1 = 80