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Standards/Math/Northern Mariana Islands/3.MD.C.7.c

3.MD.C.7.c

3.MD.C.7 Relate area to the operations of multiplication and addition.
3.MD.C.7.a
3.MD.C.7.b
3.MD.C.7.c
3.MD.C.7.d

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.

Khan Academy Resources
Area and the distributive propertyArea and the distributive property
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