Properties of Multiplication and Their Applications

The video tutorial explains the five properties of multiplication: zero, identity, commutative, associative, and distributive. Each property is defined with examples to illustrate how they work. The zero property states that any number multiplied by zero equals zero. The identity property shows that any number multiplied by one remains unchanged. The commutative property allows numbers to be multiplied in any order without changing the result. The associative property demonstrates that the grouping of numbers does not affect the product. Lastly, the distributive property involves breaking apart numbers, multiplying, and then adding the results. The video concludes with a review of these properties.

What is a property in mathematics?

• A characteristic that is sometimes true

• A characteristic that is always true

• A temporary rule

• A random number

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CCSS.3.OA.B.5

Which of the following is NOT a property of multiplication?

• Commutative Property

• Identity Property

• Subtraction Property

• Zero Property

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CCSS.3.OA.B.5

According to the Zero Property, what is the result of any number multiplied by zero?

• The number itself

• Infinity

• Zero

• One

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CCSS.3.OA.B.5

What does the Identity Property of multiplication state?

• Any number times zero is zero

• Numbers can be multiplied in any order

• Any number times one is itself

• Numbers can be grouped in any way

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CCSS.3.OA.B.5

Which property allows numbers to be multiplied in any order without changing the result?

• Distributive Property

• Commutative Property

• Zero Property

• Identity Property

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CCSS.3.OA.B.5

What does the Associative Property of multiplication allow you to do?

• Add numbers before multiplying

• Multiply numbers by zero

• Group numbers differently without changing the result

• Multiply numbers in any order

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CCSS.3.OA.B.5

In the example 5 * 4 * 2, which grouping is allowed by the Associative Property?

• Both (5 * 4) * 2 and 5 * (4 * 2)

• (5 * 4) * 2

• 5 * (4 * 2)

• Neither

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CCSS.3.OA.B.5

What does the Distributive Property of multiplication involve?

• Grouping numbers differently

• Multiplying numbers by zero

• Breaking apart a number and multiplying the pieces

• Multiplying numbers in any order

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CCSS.3.OA.B.5

Which property is demonstrated by the equation 5 * (2 + 2) = (5 * 2) + (5 * 2)?

• Zero Property

• Identity Property

• Commutative Property

• Distributive Property

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CCSS.3.OA.B.5

What is the main idea of the Distributive Property?

• To change the order of multiplication

• To distribute multiplication over addition

• To keep a number's identity

• To multiply numbers by zero

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CCSS.3.OA.B.5