14 加法 17 等于多少？
14 + 17 = 31
14加法17 等于 31
竖式演算
验算
- 用减法验算：31 − 17 = 14
- 用减法验算：31 − 14 = 17
相关题目
14 + 16 = 30
14 + 18 = 32
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14 + 19 = 33
14 + 20 = 34
14 + 14 = 28
14 + 21 = 35
14 + 13 = 27
13 + 17 = 30
15 + 17 = 32
12 + 17 = 29
16 + 17 = 33
11 + 17 = 28
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2 + 29 = 31
3 + 28 = 31
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5 + 26 = 31
6 + 25 = 31
30 + 81 = 111
32 + 71 = 103
45 + 45 = 90
54 + 36 = 90
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38 - 7 = 31