Integer Operations and Two-Colored Counters

The video tutorial explains how to model the addition of integers using two-colored counters. It covers the concept of integer opposites and zero pairs, demonstrating how adding an integer to its opposite results in zero. The tutorial uses visual aids like red and yellow counters to represent negative and positive integers, respectively. Through examples, it illustrates how to add integers with the same and different signs, emphasizing the importance of understanding sign rules and absolute values to determine the sign of the solution.

What is the opposite of a positive integer?

• A larger positive integer

• A smaller positive integer

• A negative integer

• Zero

What is the opposite of negative 45?

• Positive 45

• Negative 45

• Positive 90

• Zero

What happens when you add an integer to its opposite?

• The result is undefined

• The result is the integer itself

• The result is zero

• The result is double the integer

What is the result of adding a positive integer to its opposite?

• The positive integer

• Double the positive integer

• The negative integer

• Zero

What is the result of adding negative 2 and positive 2?

• Positive 2

• Zero

• Negative 4

• Positive 4

What is the result of adding negative 5 and positive 5?

• Positive 10

• Negative 10

• Zero

• Positive 5

What is the result of adding positive 5 and negative 5?

• Positive 10

• Negative 10

• Zero

• Negative 5

What is the result of adding negative 3 and positive 3?

• Positive 6

• Negative 6

• Zero

• Positive 3

What is the result of adding positive 3 and negative 3?

• Negative 3

• Negative 6

• Positive 6

• Zero

What is the result of adding negative 4 and positive 4?

• Positive 8

• Negative 8

• Positive 4

• Zero