Why aren't we using the multiplication sign? | Introduction to algebra | Algebra I | Khan Academy
4:58
YouTubeKhan Academy
Why aren't we using the multiplication sign? | Introduction to algebra | Algebra I | Khan Academy
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:foundation-algebra/x2f8bb11595b61c86:intro-variables/v/why-aren-t-we-using-the-multiplication-sign Great question. In algebra, we do indeed avoid using the multiplication sign. We'll explain ...
918.9K viewsSep 6, 2012
Math Multiplication Tricks
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​🤯 ¡El truco matemático que te ahorra tiempo! 🧠⚡ Mira cómo resolver 7^2 \\times 3^2 en segundos usando las propiedades de las potencias. ¡Fácil y rápido! 👇 ¿Te lo enseñaron así en la escuela? Te leo.
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​🤯 ¡El truco matemático que te ahorra tiempo! 🧠⚡ Mira cómo resolver 7^2 \\times 3^2 en segundos usando las propiedades de las potencias. ¡Fácil y rápido! 👇 ¿Te lo enseñaron así en la escuela? Te leo.
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君はどっち？？ 係数デカすぎ‼️解けるの⁉️😳 連立方程式の計算 ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ まずはビビると思う😂 普通には解けないことは なんとなく想像できると思う😌 右辺の絶対値は同じで 符号が違うことが大きな特徴🤔 思い切って足してみれば シンプルな式が見えてくる✨👀 そこからは一気に 代入法を利用すれば 解けそうになかった式を 一気に切り崩して 解くことができるのだ💪 通常の連立方程式に飽きた中学生は とくにぜひ楽しんでほしい👍 ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ ／ 🗣️数学苦手… 勉強の仕方や問題の解き方がわからない… ＼ そんな悩みを持つ人の味方になりたい✏️ ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ ˏˋプロ塾講師が教える今より30点上げる⤴️数学ˎˊ 👨‍🏫⌇20年で7000人以上指導 📚⌇累計30,000回以上授業 ⤿キミの❮分からない❯に寄り添う 𖧧元大手進学塾 数学責任者 𖧧大手個別指導塾 認定プロ講師 数学､進路に関する悩みはDMへ☟ @takaponteacher.math ↑数学の成績グッと上げたい人フォロー👆 ┈┈┈┈
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