Subtracting Integers Using the Difference on a Number Line

This lesson teaches how to subtract integers using a number line. It clarifies common misconceptions about integer values, explains the meanings of the negative symbol, and demonstrates how to calculate differences using examples. The concept of distance is used to understand subtraction, and real-world applications are provided to reinforce learning. The lesson concludes with a summary of the key points covered.

Which of the following statements is true about integers on a number line?

• Zero is not considered an integer.

• Numbers increase as you move to the left.

• Negative numbers are always larger than positive numbers.

• Numbers increase as you move to the right.

What does the negative symbol represent in subtraction?

• It can mean to subtract or find the distance.

• It always indicates a positive number.

• It is used to multiply numbers.

• It only means to add.

If you subtract a larger number from a smaller number, what is the result?

• A positive number

• The same number

• Zero

• A negative number

What is the distance between 3 and -2 on a number line?

• 5 units

• 3 units

• 7 units

• 1 unit

How far is it from the top of a 60-meter building to the bottom of a parking lot 50 meters below ground?

• 60 meters

• 50 meters

• 110 meters

• 10 meters