29 加法 42 等于多少？
29 + 42 = 71
29加法42 等于 71
竖式演算
验算
- 用减法验算：71 − 42 = 29
- 用减法验算：71 − 29 = 42
相关题目
29 + 41 = 70
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29 + 44 = 73
29 + 39 = 68
29 + 45 = 74
29 + 38 = 67
29 + 46 = 75
28 + 42 = 70
30 + 42 = 72
31 + 42 = 73
27 + 42 = 69
32 + 42 = 74
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2 + 69 = 71
3 + 68 = 71
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9 + 55 = 64
35 + 73 = 108
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87 - 16 = 71