31 加法 87 等于多少？
31 + 87 = 118
31加法87 等于 118
竖式演算
验算
- 用减法验算：118 − 87 = 31
- 用减法验算：118 − 31 = 87
相关题目
31 + 86 = 117
31 + 88 = 119
31 + 85 = 116
31 + 89 = 120
31 + 84 = 115
31 + 90 = 121
31 + 83 = 114
31 + 91 = 122
30 + 87 = 117
32 + 87 = 119
29 + 87 = 116
33 + 87 = 120
28 + 87 = 115
34 + 87 = 121
35 + 87 = 122
27 + 87 = 114
18 + 100 = 118
19 + 99 = 118
20 + 98 = 118
21 + 97 = 118
22 + 96 = 118
23 + 95 = 118
2 + 48 = 50
39 + 45 = 84
82 + 45 = 127
46 + 63 = 109
17 + 45 = 62
64 + 65 = 129
59 × 2 = 118
2 × 59 = 118