Subtracting Integers Using the Number Line

This video tutorial explains how to subtract integers using a number line. It demonstrates that every subtraction problem can be converted into an equivalent addition problem by adding the opposite. The tutorial provides several examples, such as 9 minus 3, 3 minus 9, negative 3 minus 7, negative 3 minus negative 7, and 4 minus negative 2, showing how to model these problems on a number line. The video emphasizes understanding subtraction as adding the opposite and provides visual models to reinforce this concept.

What is the equivalent addition problem for the subtraction of integers?

• A - B = B - A

• A - B = A + (-B)

• A - B = A - (-B)

• A - B = A + B

How do you represent the subtraction of 9 - 3 on a number line?

• Move right 9 units, then left 3 units

• Move left 9 units, then right 3 units

• Move left 3 units, then right 9 units

• Move right 3 units, then left 9 units

What is the result of 3 minus 9 using the number line?

• Positive 6

• Positive 9

• Negative 6

• Negative 9

When subtracting 7 from -3, what is the equivalent addition problem?

• -3 + 7

• -3 + (-7)

• 3 + 7

• 3 + (-7)

What is the result of -3 minus 7 on the number line?

• Positive 4

• Negative 4

• Positive 10

• Negative 10

How do you model -3 minus negative 7 on a number line?

• Move right 3 units, then left 7 units

• Move left 3 units, then left 7 units

• Move right 3 units, then right 7 units

• Move left 3 units, then right 7 units

What is the result of -3 minus negative 7?

• Positive 10

• Negative 10

• Positive 4

• Negative 4

What is the equivalent addition problem for 4 minus negative 2?

• 4 - (-2)

• 4 + (-2)

• 4 - 2

• 4 + 2

How do you model 4 minus negative 2 on a number line?

• Move right 4 units, then right 2 units

• Move left 4 units, then left 2 units

• Move right 4 units, then left 2 units

• Move left 4 units, then right 2 units

What is the result of 4 minus negative 2?

• Negative 2

• Positive 2

• Negative 6

• Positive 6