Khan Academy

Supporting grades: 7

Description: Use the distributive property to understand the products of negative numbers. Created by Sal Khan. Lets say you are an Ancient Philosopher who was building up mathematics who was building mathematics from the ground up. And you already have a reasonable of what a negative number could or should represent and you know how to add and subtract negative numbers But now you are faced with a conundrum. What happens when you multiply negative numbers?

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