Integer Subtraction Using Number Lines

This video tutorial explains how to subtract integers using a number line and comparison model. It covers various examples, including subtracting positive and negative integers, and demonstrates how to determine the sign of the result based on the direction of the arrow on the number line. The tutorial also highlights the concept of distance between numbers and how it affects the subtraction outcome.

What is the first step in subtracting integers using the number line?

• Draw an arrow from the first number to the second.

• Plot the numbers on the number line.

• Determine the sign of the answer.

• Count the distance between the numbers.

Tags

CCSS.7.NS.A.1C

In the example 7 - 2, what does the direction of the arrow indicate?

• The subtraction is incorrect.

• The result is negative.

• The result is positive.

• The numbers are equal.

Tags

CCSS.7.NS.A.1B

When reversing the order to 2 - 7, what is the result?

• Negative 5

• Positive 5

• Zero

• Positive 7

Tags

CCSS.7.NS.A.1B

In the subtraction -2 - 5, what is the distance between the numbers on the number line?

• 9 units

• 2 units

• 7 units

• 5 units

Tags

CCSS.7.NS.A.1C

What is the result of -2 - 5?

• Zero

• Positive 5

• Negative 7

• Positive 7

Tags

CCSS.7.NS.A.1B

In the example 2 - (-5), what does the arrow direction indicate?

• The result is negative.

• The result is positive.

• The subtraction is incorrect.

• The numbers are equal.

Tags

CCSS.7.NS.A.1C

What is the result of 9 - (-4)?

• Positive 13

• Negative 13

• Negative 5

• Positive 5

Tags

CCSS.7.NS.A.1C

What happens when the minuend and subtrahend are the same?

• The result is positive.

• The subtraction is invalid.

• The result is negative.

• The result is zero.

Tags

CCSS.7.NS.A.1C

In the special case of -6 - (-6), what is the distance between the numbers?

• 6 units

• 0 units

• 12 units

• 1 unit

Tags

CCSS.7.NS.A.1C

What is the final result of -6 - (-6)?

• Positive 6

• Negative 6

• Zero

• Positive 12

Tags

CCSS.7.NS.A.1C