Multiplying Integers and Their Signs

This video tutorial covers multiplication involving three or more integers, focusing on the rules for multiplying integers with different and same signs. It introduces a shortcut for determining the sign of the product based on the number of negative integers involved. Two examples are provided: one with an odd number of negatives resulting in a negative product, and another with an even number of negatives resulting in a positive product. The tutorial concludes with tips on using the shortcut to save time.

What is the result when multiplying two integers with different signs?

• The product is positive.

• The product is negative.

• The product is zero.

• The product is undefined.

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

• The product is positive.

• The product is negative.

• The product is zero.

• The product is undefined.

What is the sign of the product when multiplying an even number of negative integers?

• Undefined

• Zero

• Positive

• Negative

What is the sign of the product when multiplying an odd number of negative integers?

• Undefined

• Negative

• Positive

• Zero

In the first example, how many negative integers are involved?

• One

• Two

• Four

• Three

What is the final product in the first example?

• Thirty

• Negative sixty

• Negative thirty

• Sixty

In the second example, how many negative integers are involved?

• One

• Three

• Four

• Two

What is the final product in the second example?

• Thirty

• Negative thirty

• Sixty

• Negative sixty