Introduction to Using the Commutative and Associative Properties
Janelle is helping to plan a family reunion, and she wants to order shirts for all the kids who will attend. She starts thinking about the best way to tally up the number of kids in each family. Should she start with the oldest child's family? Should she add them up alphabetically? Will her method change the total number of shirts she needs to order, or will she arrive at the same number no matter how she does it? In this section, you'll learn about the commutative and associative properties, which can help Janelle figure out her answer.Learning Outcomes
By the end of this section, you will be able to:- Use the commutative and associative properties
- Evaluate expressions using the commutative and associative properties
- Simplify expressions using the commutative and associative properties
readiness quiz
- Simplify: [latex]7y+2+y+13[/latex].If you missed this problem, review [link].
- Multiply: [latex]\frac{2}{3}\cdot 18[/latex].If you missed this problem, review [link].
- Find the opposite of [latex]15[/latex].If you missed this problem, review [link].
Licenses & Attributions
CC licensed content, Shared previously
- Children wearing matching t-shirts. Authored by: Virginia State Parks. Located at: https://www.flickr.com/photos/vastateparksstaff/30560307010/. License: CC BY: Attribution.
CC licensed content, Specific attribution
- Prealgebra. Provided by: OpenStax License: CC BY: Attribution. License terms: Download for free at http://cnx.org/contents/[email protected].