31 加法 70 等于多少？
31 + 70 = 101
31加法70 等于 101
竖式演算
验算
- 用减法验算：101 − 70 = 31
- 用减法验算：101 − 31 = 70
相关题目
31 + 69 = 100
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31 + 67 = 98
31 + 73 = 104
31 + 74 = 105
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30 + 70 = 100
32 + 70 = 102
29 + 70 = 99
33 + 70 = 103
28 + 70 = 98
34 + 70 = 104
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1 + 100 = 101
2 + 99 = 101
3 + 98 = 101
4 + 97 = 101
5 + 96 = 101
6 + 95 = 101
6 + 9 = 15
64 + 65 = 129
53 + 53 = 106
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19 + 44 = 63
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18 + 94 = 112