15 加法 89 等于多少？
15 + 89 = 104
15加法89 等于 104
竖式演算
验算
- 用减法验算：104 − 89 = 15
- 用减法验算：104 − 15 = 89
相关题目
15 + 88 = 103
15 + 90 = 105
15 + 87 = 102
15 + 91 = 106
15 + 92 = 107
15 + 86 = 101
15 + 93 = 108
15 + 85 = 100
14 + 89 = 103
16 + 89 = 105
13 + 89 = 102
17 + 89 = 106
12 + 89 = 101
18 + 89 = 107
11 + 89 = 100
19 + 89 = 108
4 + 100 = 104
5 + 99 = 104
6 + 98 = 104
7 + 97 = 104
8 + 96 = 104
9 + 95 = 104
99 + 95 = 194
39 + 68 = 107
74 + 76 = 150
98 + 88 = 186
95 + 19 = 114
71 + 69 = 140
8 × 13 = 104
4 × 26 = 104