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Curated by: Khan Academy India - English (8 videos)
Why does any number, when multiplied by 1, stay the same? This simple but powerful rule is because 1 is the 'multiplicative identity'! This video breaks down this fundamental concept, starting with a fun pizza example and moving through integers, fractions, and decimals. Understand why 1 is a special number in multiplication and test your knowledge with a bonus question! Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/properties-of-numbers/a/properties-of-multiplication 0:00 - Introduction with Pizza Example 0:13 - Multiplying Integers by 1 0:27 - Defining Multiplicative Identity 0:42 - Applying the Concept to All Rational Numbers 0:56 - Examples with Fractions and Decimals 1:19 - Conclusion 1:24 - Bonus Question Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Sarath Penumuru