Area 3.6 (D), 3.6 (E) Grade Practice Test Questions TOC | Lumos Learning

Area 3.6 (D), 3.6 (E) Question & Answer Key Resources Grade 3 Mathematics - STAAR Redesign Practice + Skills Mastery

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Consider two rectangles with dimensions 8 cm x 7 cm and 8 cm x 5 cm placed one above the other (as shown in the figure below).
Find the areas of rectangles A, B, and the big rectangle (formed by A and B). Show that the area of the big rectangle is equal to the sum of the areas of rectangles A and B. What property is illustrated in this example? Write your answer in the box below.

Resource: Question

Question Type: Extended Constructed Response

Standard(s):3.MD.C.7

Standard Description: Relate area to the operations of multiplication and addition.

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