4 加法 87 等于多少？
4 + 87 = 91
4加法87 等于 91
竖式演算
验算
- 用减法验算：91 − 87 = 4
- 用减法验算：91 − 4 = 87
相关题目
4 + 86 = 90
4 + 88 = 92
4 + 85 = 89
4 + 89 = 93
4 + 84 = 88
4 + 90 = 94
4 + 83 = 87
4 + 91 = 95
3 + 87 = 90
5 + 87 = 92
2 + 87 = 89
6 + 87 = 93
1 + 87 = 88
7 + 87 = 94
8 + 87 = 95
9 + 87 = 96
1 + 90 = 91
2 + 89 = 91
3 + 88 = 91
5 + 86 = 91
6 + 85 = 91
7 + 84 = 91
35 + 84 = 119
26 + 14 = 40
37 + 39 = 76
34 + 91 = 125
6 + 57 = 63
35 + 16 = 51
13 × 7 = 91
97 - 6 = 91