1~99奇数有多少个？Thank you very much

来源：学生作业帮编辑：拍题作业网作业帮分类：数学作业时间：2024/05/16 04:50:12

1-10中奇数：1 3 5 7 9 共5个偶数：2 4 6 8 10 共5个同理 11-20 21-30 31-40 ......91-100 每组的奇数都等于偶数都是5个所以1-100中奇数有50个偶数50个所以1-99中奇数有50个
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