Mastering Integer Multiplication and Division Techniques

This video tutorial teaches how to multiply and divide integers without using integer tiles. It explains the rules for determining the sign of the result based on the signs of the integers involved. If both integers have the same sign, the result is positive; if they have different signs, the result is negative. The tutorial provides multiple examples to illustrate these rules and emphasizes that these rules apply only to multiplication and division, not to addition or subtraction.

What is the result when multiplying two integers with the same sign?

• Undefined

• Zero

• Positive

• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If you divide a negative integer by a positive integer, what will be the sign of the result?

• Undefined

• Negative

• Positive

• Zero

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of 30 divided by -5?

• 6

• 5

• -5

• -6

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

When multiplying a negative integer by a positive integer, what is the sign of the result?

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of -8 times 4?

• -32

• 32

• -12

• 12

Tags

CCSS.7.NS.A.3

If you have three numbers in a row, how should you approach solving the problem?

• Ignore the signs

• Do them two at a time

• Add them first

• Solve all at once

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of -16 divided by 2?

• -8

• 8

• -4

• 4

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of -42 divided by -6?

• 6

• -6

• 7

• -7

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of 12 times -1?

• -12

• -1

• 12

• 1

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of -42 divided by 6?

• 7

• -7

• -6

• 6

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B