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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
4th grade (Eureka Math/EngageNY)
Module 4: Angle measure and plane figures
Topic C: Problem solving with the addition of angle measures
Decomposing an angle
Decomposing an angle
Sal finds the measure of angles by adding or subtracting.
License: CC BY-NC-SA by Khan Academy