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Mathematics, 31.08.2020 01:01 manlycool9962

PLEASE HELP THIS ASSIGNMENT IS DUE SOON! (Please note I am in 6th grade and I accidentally said I was in college thank you) Arlene is showing her work in simplifying βˆ’7.9 + 8.2 βˆ’ 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write feedback to Arlene explaining the mistake she made and how to correct her work. (14 points) Step Work Reasoning βˆ’7.9 + 8.2 βˆ’ 3.4 + 2.1 Original problem 1 βˆ’7.9 + 8.2 + (βˆ’3.4) + 2.1 Additive inverse 2 βˆ’7.9 + (βˆ’3.4) + 8.2 + 2.1 Associative property 3 (βˆ’7.9 + (βˆ’3.4)) + (8.2 + 2.1) Commutative property 4 βˆ’11.3 + 10.3 Simplify 5 βˆ’1 Simplify Please make it at least 2 sentences if you can.

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