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      <title>NỘP SẢN PHẨM DỰÁN TOÁN by CÔ HUYỀN GV TOÁN - THCS HIẾU GIANG</title>
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      <description>Explore the historical evolution of decimal numbers and their impact on mathematics.</description>
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      <pubDate>2025-02-10 01:21:09 UTC</pubDate>
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         <title>LƠP 6B</title>
         <author>dothihuyen2821988</author>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>~2000 BC: Babylonian Numerals</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[The Babylonians developed a base-60 numeral system but also used base-10 for simpler calculations, showing an early understanding of decimal concepts.]]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>~500 BC: Greek Mathematicians and Decimals</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[Greek scholars, such as Pythagoras, explored fractions and ratios, which laid the foundation for understanding decimals.]]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>5th Century AD: Indian Contributions</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[Indian mathematicians like Aryabhata introduced the concept of decimal place value, which became a cornerstone for modern arithmetic.]]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>9th Century: Al-Khwarizmi and Decimal Notation</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[The Persian mathematician Al-Khwarizmi wrote about decimal fractions and methods of calculation, greatly influencing mathematical progress in the Islamic Golden Age.]]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>13th Century: Fibonacci’s Work in Europe</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[Fibonacci introduced the Hindu-Arabic numeral system, including decimals, to Europe through his book 'Liber Abaci.']]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>16th Century: Decimal Point Introduction</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[The decimal point as a separator was first used by Flemish mathematician Simon Stevin in his work 'De Thiende.']]></description>
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         <pubDate>2025-02-10 01:21:10 UTC</pubDate>
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         <title>17th Century: John Napier and Logarithms</title>
         <author>dothihuyen2821988</author>
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         <description><![CDATA[John Napier popularized the use of decimals in logarithmic calculations, simplifying complex mathematical operations.]]></description>
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