17 加法 52 等于多少？
17 + 52 = 69
17加法52 等于 69
竖式演算
验算
- 用减法验算：69 − 52 = 17
- 用减法验算：69 − 17 = 52
相关题目
17 + 51 = 68
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17 + 55 = 72
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16 + 52 = 68
18 + 52 = 70
15 + 52 = 67
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2 + 67 = 69
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91 - 22 = 69