Multiplying Positive and Negative Integers Using Equal Groups

This video tutorial teaches how to multiply a positive integer by a negative integer using the concept of equal groups. It introduces the terms 'factor' and 'product' and explains how to use models to represent positive and negative integers. The tutorial demonstrates the use of a product box to solve multiplication problems and provides examples of multiplying positive and negative integers, emphasizing the concept of zero pairs and additive inverses.

What is the result called in a multiplication problem?

• Quotient

• Sum

• Product

• Factor

What does a zero pair represent in integer models?

• A positive value

• A negative value

• A value of one

• A value of zero

How is a positive integer multiplied by a negative integer represented in the product box?

• As mixed groups

• As negative groups

• As zero pairs

• As positive groups

If you have 5 groups of -3, what is the product?

• 5

• -15

• 15

• -5

What is the product of 15 times -2?

• 15

• -30

• -15

• 30