18 加法 29 等于多少？
18 + 29 = 47
18加法29 等于 47
竖式演算
验算
- 用减法验算：47 − 29 = 18
- 用减法验算：47 − 18 = 29
相关题目
18 + 28 = 46
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18 + 32 = 50
18 + 26 = 44
18 + 33 = 51
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17 + 29 = 46
19 + 29 = 48
20 + 29 = 49
16 + 29 = 45
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2 + 45 = 47
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