问题标题:
【数学高手进5年级数学题禁止不解题(分多)分一分:1,2,3,11,12,13,21,22,23,31,32,33,41,42,43,51,52,53.合数:()质数:()偶数:()奇数:()按要求填一填:2,47,49,56,99,121,133,201,93,100,156,73,89】
问题描述:
数学高手进5年级数学题禁止不解题(分多)
分一分:
1,2,3,11,12,13,21,22,23,31,32,33,41,42,43,51,52,53.
合数:()
质数:()
偶数:()
奇数:()
按要求填一填:
2,47,49,56,99,121,133,201,93,100,156,73,89,79,102,4.
既是奇数又是质数()
既是偶数又是质数()
既是奇数又是合数()
既是偶数又是合数()
付迎春回答:
(1):1不是合数不是质数合数:12,21,22,32,33,42,52质数:2,3,11,13,23,31,41,43,51,53偶数:2,12,22,32,42,52奇数:1,3,11,13,21,23,31,33,41,43,51,53(2):47,133,73,89,79249,99,121,201,93,56,100,156,102,4...
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