. Grade 7, Illustrative icon
Task

Distributive Property of Multiplication

Illustrative MathematicsVaries

The goal of this task is to study the distributive property for products of whole numbers, focusing on using geometry to help understand why (-1)×(-1) = 1. This important property can be viewed as an application of the distributive property to whole numbers. While it is not easy to 'visualize' taking a product of negative numbers, the pictures studied here add some tangible evidence why (-1)×(-1) = 1.

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