87 加法 3 等于多少？
87 + 3 = 90
87加法3 等于 90
竖式演算
验算
- 用减法验算：90 − 3 = 87
- 用减法验算：90 − 87 = 3
相关题目
87 + 2 = 89
87 + 4 = 91
87 + 1 = 88
87 + 5 = 92
87 + 6 = 93
87 + 7 = 94
87 + 8 = 95
87 + 9 = 96
86 + 3 = 89
88 + 3 = 91
85 + 3 = 88
89 + 3 = 92
84 + 3 = 87
90 + 3 = 93
83 + 3 = 86
91 + 3 = 94
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
90 + 74 = 164
53 + 82 = 135
29 + 18 = 47
42 + 29 = 71
41 + 49 = 90
62 + 50 = 112
96 - 6 = 90
92 - 2 = 90