七上數學 55 一元一次式的化簡(1)：代數式的簡記規則、符號代表數與式子的化簡入門｜何肇忠老師 (最新課綱)
Synopsis
開啟代數世界的大門！本集帶領同學挑戰講義第1 至3 頁。我們將學習如何用字母符號代表數，掌握代數式最基礎的簡記規則與書寫 ...
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