Adding Positive and Negative Integers Using a Number Line

This video tutorial teaches how to add two positive or two negative integers using a number line. It begins by explaining what integers are, including positive, negative numbers, and zero. The concept of addition is defined, highlighting common mistakes such as assuming two negative integers result in a positive sum. The tutorial demonstrates using a number line to add integers, showing examples of both positive and negative integer addition. It concludes with key takeaways that two positive integers result in a positive sum, and two negative integers result in a negative sum.

What is an integer?

• A complex number

• A fraction

• A decimal number

• A whole number that can be positive, negative, or zero

What is a common mistake when adding two negative integers?

• Getting a smaller negative sum

• Getting a larger negative sum

• Getting a zero sum

• Getting a positive sum

When moving right on a number line, what does it represent?

• Negative movement

• Positive movement

• Zero movement

• Circular movement

What is the result of adding positive 3 and positive 6 on a number line?

• Zero

• Negative 3

• Positive 9

• Positive 6

What is the result of adding negative 3 and negative 6 on a number line?

• Negative 3

• Positive 9

• Negative 9

• Zero