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Curated Video
Inverse Operations
"Inverse Operations" explains how to solve equations in the form x + p = q, where p and q are given rational numbers, by using knowledge of inverse operations.
CK-12 Foundation
Classifying Parallelograms: Lesson
Properly organize parallelograms. Given special parallelograms, the narrator of a short video explains the properties of each. The section of a playlist on geometry uses the properties to classify the special parallelograms.