29 加法 2 等于多少？
29 + 2 = 31
29加法2 等于 31
竖式演算
验算
- 用减法验算：31 − 2 = 29
- 用减法验算：31 − 29 = 2
相关题目
29 + 1 = 30
29 + 3 = 32
29 + 4 = 33
29 + 5 = 34
29 + 6 = 35
29 + 7 = 36
29 + 8 = 37
29 + 9 = 38
28 + 2 = 30
30 + 2 = 32
31 + 2 = 33
27 + 2 = 29
32 + 2 = 34
26 + 2 = 28
33 + 2 = 35
25 + 2 = 27
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2 + 29 = 31
3 + 28 = 31
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6 + 25 = 31
47 + 61 = 108
56 + 52 = 108
87 + 22 = 109
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43 + 83 = 126
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48 - 17 = 31