Perimeter word problem: tables (Full video)

Khan Academy

Supporting grades: 3

Description: Lindsay solves a perimeter word problem that involves combining two perimeters. Created by Lindsay Spears. Lea and Pedro push two tables together. We have one meter on the end of this table so that inside this length from here to here is also one meter. What we can say is, if this entire length is three meters, then this entire length is three meters, but one of those meters was moved to the inside, so how many meters are still left here on the outside?

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