Demonstrate understanding of the properties of operations as strategies to multiply and divide.
3.MD.7
Relate area to the operations of multiplication and addition (refer to 3.OA.5).
3.MD.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.
