Exploring Integer Operations on a Number Line

The video tutorial explains how to add and subtract integers using a number line. It covers the process of starting with the first number and moving right for addition and left for subtraction. The tutorial highlights how negative numbers affect the direction of movement, emphasizing the concept of doing the opposite when dealing with negatives. Examples include adding and subtracting both positive and negative integers, demonstrating how to find the resulting value on the number line.

When adding or subtracting integers on a number line, where do you start?

• At the last number in the problem

• At the first number in the problem

• At zero

• At a random point

What is the result of 4 + (-3) on a number line?

• Negative 7

• Negative 1

• Positive 7

• Positive 1

If you start at -6 and add -2, where do you end up on the number line?

• At -4

• At -8

• At -2

• At 0

What is the result of -4 + 8 on a number line?

• Negative 8

• Positive 8

• Negative 4

• Positive 4

When adding a positive number to a negative number, in which direction do you move on the number line?

• Down

• Left

• Up

• Right

What is the result of 2 - 5 on a number line?

• Negative 7

• Negative 3

• Positive 3

• Positive 7

If you start at -8 and subtract -2, where do you end up on the number line?

• At -6

• At -10

• At -4

• At -2

What is the result of 2 - (-3) on a number line?

• Positive 5

• Positive 1

• Negative 1

• Negative 5

When subtracting a negative number, in which direction do you move on the number line?

• Left

• Up

• Right

• Down

What is the result of -5 - 3 on a number line?

• Positive 8

• Negative 8

• Positive 2

• Negative 2