First, by demonstrating the improper ways of solving an equation (left-to-right, multiplication first), Sal shows viewers how the answer to an equation can be drastically incorrect if the order of operations is neglected. He uses several examples to demonstrate the order of operations at work and clarifies when the answer to an equation will be the same no matter what the order.

Concepts

order of operations, evaluating expressions

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Additional Tags

order of operations, math

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Classroom Considerations

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