Evaluating Multiplication Expressions Using Properties

This lesson covers the commutative and associative properties of multiplication, demonstrating how these properties can be used to rearrange and group factors in expressions involving rational numbers. The commutative property allows changing the order of factors, while the associative property allows changing their grouping. The lesson includes a practical example where these properties are applied to simplify and evaluate an expression using mental math, ultimately leading to a final calculation.

What does the commutative property of multiplication allow us to do?

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How can the associative property of multiplication be represented?

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Explain how you can use mental math to evaluate expressions involving rational numbers.

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Describe the process of using the commutative property to evaluate an expression.

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What is the significance of changing the grouping of factors in multiplication?

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