<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[(英语之外)小学奥数学习竟然学等差数列]]></title><description><![CDATA[<p dir="auto">超前学也太夸张了，才二下的奥数题，还没学三上呢。好吧，学学吧！等差数列求和公式:<br />
(头+尾)×个数 ÷ 2  。让她在解题过程中熟悉公式吧。解题还是快乐的。</p>
]]></description><link>https://nhqx.com/topic/26/英语之外-小学奥数学习竟然学等差数列</link><generator>RSS for Node</generator><lastBuildDate>Sun, 23 Aug 2026 23:00:07 GMT</lastBuildDate><atom:link href="https://nhqx.com/topic/26.rss" rel="self" type="application/rss+xml"/><pubDate>Sun, 23 Aug 2026 12:22:56 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to (英语之外)小学奥数学习竟然学等差数列 on Sun, 23 Aug 2026 12:54:11 GMT]]></title><description><![CDATA[<p dir="auto">学完之后，解出题，很有成就感。</p>
]]></description><link>https://nhqx.com/post/60</link><guid isPermaLink="true">https://nhqx.com/post/60</guid><dc:creator><![CDATA[你好清新]]></dc:creator><pubDate>Sun, 23 Aug 2026 12:54:11 GMT</pubDate></item><item><title><![CDATA[Reply to (英语之外)小学奥数学习竟然学等差数列 on Sun, 23 Aug 2026 12:53:21 GMT]]></title><description><![CDATA[<p dir="auto">奇数数列巧算，中间数×个数=和</p>
]]></description><link>https://nhqx.com/post/59</link><guid isPermaLink="true">https://nhqx.com/post/59</guid><dc:creator><![CDATA[你好清新]]></dc:creator><pubDate>Sun, 23 Aug 2026 12:53:21 GMT</pubDate></item><item><title><![CDATA[Reply to (英语之外)小学奥数学习竟然学等差数列 on Sun, 23 Aug 2026 12:32:46 GMT]]></title><description><![CDATA[<p dir="auto">有些乘除法算式还得三年级学，现在只能简单巧算。</p>
]]></description><link>https://nhqx.com/post/58</link><guid isPermaLink="true">https://nhqx.com/post/58</guid><dc:creator><![CDATA[你好清新]]></dc:creator><pubDate>Sun, 23 Aug 2026 12:32:46 GMT</pubDate></item></channel></rss>