Subtracting Integers Using a Number Line

The video tutorial explains how to add and subtract integers using a number line. It covers the rules for moving left or right on the number line when adding or subtracting positive and negative numbers. Two examples are provided: subtracting a positive number from a negative and subtracting a negative number from a positive. The lesson concludes with a summary of the concepts taught.

When adding a positive integer on a number line, which direction do you move?

• Down

• Up

• Left

• Right

If you subtract a positive number from a negative number on a number line, which direction should you move?

• Right

• Down

• Left

• Up

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

• 7

• -3

• -7

• 3

When subtracting a negative integer from a positive integer, which direction do you move on the number line?

• Down

• Right

• Left

• Up

What is the result of subtracting -3 from 2 on a number line?

• 1

• -5

• -1

• 5