Common Core State Standards for Math

3.MD.C.7.c

6b9cbaef-d7cc-11e8-824f-0242ac160002 6b9e9d1d-d7cc-11e8-824f-0242ac160002 6b9ea3cd-d7cc-11e8-824f-0242ac160002 3.MD.C 3.MD.C.7 3.MD.C.7.c

Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning.

Propose a mapping

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