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# Writing in Math Why is order sometimes important when determining outcomes? Give an example of a situation where order is important and one where order is not important.

## When order is not important, duplicate arrangements are not included in the number of arrangements. Answers should include the following. Order is important when you arrange things in a line; order is not important when you choose a group of things.

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##### Heather Z.

Oregon State University

##### Kristen K.

University of Michigan - Ann Arbor

##### Michael J.

Idaho State University

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### Video Transcript

{'transcript': "Hi, everyone. So why is it important to use the order of operations to simplify an expression? Well, without a specific order of operations? We get different solutions simplifying an expression with many operations in it. So let's say we had four plus two times. Two Okay, so if we solve it left to right, you get six times to gives us 12. Well, that's not right, because we have to do multiplication first. So two times two is four plus four gives us 88 is the right answer. 12 is not the right answer, so we have to use it for a specific order. That way we get one answer every time."}

##### Heather Z.

Oregon State University

##### Kristen K.

University of Michigan - Ann Arbor

##### Michael J.

Idaho State University