This Screencast was completed using Dabbleboard and shows how changing removing or eliminating parentheses with similar numbers can change the outcome. The instructor reviews the order of operations as she works the same problem in two different ways based on placement of parentheses.
Evaluating Expressions with Parentheses is a free educational video by KFreimuth83.It helps students in grades 6 practice the following standards 5.OA.A.1.
1. 5.OA.A.1 : Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols..
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