1 加法 84 等于多少？
1 + 84 = 85
1加法84 等于 85
竖式演算
验算
- 用减法验算：85 − 84 = 1
- 用减法验算：85 − 1 = 84
相关题目
1 + 83 = 84
1 + 85 = 86
1 + 82 = 83
1 + 86 = 87
1 + 87 = 88
1 + 81 = 82
1 + 88 = 89
1 + 80 = 81
2 + 84 = 86
3 + 84 = 87
4 + 84 = 88
5 + 84 = 89
6 + 84 = 90
7 + 84 = 91
8 + 84 = 92
9 + 84 = 93
2 + 83 = 85
3 + 82 = 85
4 + 81 = 85
5 + 80 = 85
6 + 79 = 85
7 + 78 = 85
35 + 23 = 58
12 + 43 = 55
20 + 78 = 98
14 + 1 = 15
10 + 61 = 71
45 + 30 = 75
88 - 3 = 85
89 - 4 = 85