70 加法 31 等于多少？
70 + 31 = 101
70加法31 等于 101
竖式演算
验算
- 用减法验算：101 − 31 = 70
- 用减法验算：101 − 70 = 31
相关题目
70 + 30 = 100
70 + 32 = 102
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70 + 33 = 103
70 + 28 = 98
70 + 34 = 104
70 + 35 = 105
70 + 27 = 97
69 + 31 = 100
71 + 31 = 102
68 + 31 = 99
72 + 31 = 103
67 + 31 = 98
73 + 31 = 104
74 + 31 = 105
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1 + 100 = 101
2 + 99 = 101
3 + 98 = 101
4 + 97 = 101
5 + 96 = 101
6 + 95 = 101
6 + 75 = 81
87 + 72 = 159
76 + 82 = 158
24 + 95 = 119
67 + 28 = 95
47 + 46 = 93
5 + 20 = 25
4 + 21 = 25