问题描述: 30以内的奇数、偶数、质数、合数 1个回答 分类:数学 2014-10-26 问题解答: 我来补答 奇数:1,3,5,7,9,11,13,15,17,19,21,23,25,27,29偶数:2,4,6,8,10,12,14,16,18,20,22,24,26,28,30质数:2,3,5,7,11,13,17,19,23,29合数:4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,28,30 展开全文阅读