Exploring Integer Multiplication and Division

This video tutorial from Math Antics explains how to multiply and divide integers, emphasizing that these operations are simpler than addition and subtraction. It covers the concept of negative numbers as mirror images of positive numbers and explains how multiplying by negative one switches a number's sign. The video highlights patterns in multiplication involving negative numbers, showing that an even number of negative factors results in a positive product, while an odd number results in a negative product. It also demonstrates that the same rules apply to division and provides complex examples for practice.

Is multiplying and dividing integers simpler than adding and subtracting them?

• Yes, but only for positive integers.

• No, it's equally complex.

• No, because it involves more steps.

• Yes, because the rules are more straightforward.

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CCSS.7.NS.A.2A

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What does multiplying a positive number by negative one result in?

• A positive number

• A negative number

• Zero

• The same number

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CCSS.3.OA.D.9

What happens when you multiply a negative number by another negative number?

• It becomes more negative.

• It turns positive.

• It remains unchanged.

• It becomes zero.

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CCSS.7.NS.A.2A

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What is the result of multiplying an even number of negative factors?

• Zero

• Undefined

• A positive result

• A negative result

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CCSS.3.OA.D.9

What is the result of multiplying three negative numbers together?

• Zero

• A positive number

• Undefined

• A negative number

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

How does division of negative numbers follow the same rules as multiplication?

• It doesn't; division rules are different.

• An even number of negatives results in a positive quotient.

• Only when dividing by negative one.

• By reversing the sign of the quotient.

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CCSS.7.NS.A.2A

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If you have negative 8 divided by negative 2, what is the result?

• Negative 4

• Positive 4

• Zero

• Undefined

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CCSS.7.NS.A.2A

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How do you determine the sign of the answer in integer multiplication and division?

• By dividing the negatives

• By adding the negatives

• By subtracting the negatives

• By counting the number of negative factors

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CCSS.7.NS.A.2C

What is the result of negative 1 times negative 8 times negative 6 divided by negative 3 times negative 4?

• Negative 4

• Positive 4

• Undefined

• Zero

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CCSS.7.NS.A.1C

What changes if you make one of the numbers in the previous problem positive?

• The result becomes positive

• The result becomes negative

• The result is undefined

• The result becomes zero

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CCSS.7.NS.A.1C