69 加法 31 等于多少？
69 + 31 = 100
69加法31 等于 100
竖式演算
验算
- 用减法验算：100 − 31 = 69
- 用减法验算：100 − 69 = 31
相关题目
69 + 30 = 99
69 + 32 = 101
69 + 29 = 98
69 + 33 = 102
69 + 28 = 97
69 + 34 = 103
69 + 35 = 104
69 + 27 = 96
68 + 31 = 99
70 + 31 = 101
67 + 31 = 98
71 + 31 = 102
66 + 31 = 97
72 + 31 = 103
65 + 31 = 96
73 + 31 = 104
1 + 99 = 100
2 + 98 = 100
3 + 97 = 100
4 + 96 = 100
5 + 95 = 100
6 + 94 = 100
66 + 39 = 105
75 + 58 = 133
76 + 55 = 131
59 + 68 = 127
71 + 69 = 140
58 + 74 = 132
100 × 1 = 100
25 × 4 = 100