Adding Integers on a Number Line

Mr. Buffington introduces adding integers using a number line. The lesson covers defining integers, demonstrating how to add them on a number line, and provides practice problems. It concludes with a word problem to apply the concepts learned. Key points include understanding positive and negative numbers, using a number line for addition, and recognizing patterns in integer addition.

What are integers?

• Only positive whole numbers

• Only negative numbers

• Both positive and negative whole numbers, including zero

• Fractional numbers

On a number line, where are positive numbers located in relation to zero?

• Below zero

• To the right of zero

• Directly above zero

• To the left of zero

What is the result of 7 + (-4) using a number line?

• 3

• 11

• -3

• -11

What is the result of adding a positive and a negative integer with more negative value?

• A positive number

• A negative number

• Zero

• Cannot be determined

If you add two negative integers, what will be the sign of your result?

• Zero

• Negative

• The sign cannot be determined

• Positive

If both numbers being added are positive, the result will always be:

• Negative

• Cannot be determined

• Positive

• Zero

What does adding negative 3 and negative 2 result in?

• -1

• -5

• 1

• 5

Adding negative 1, positive 7, and negative 6 results in what number?

• -2

• 2

• 12

• 0

What is the key takeaway when adding integers of different signs?

• The result is always positive

• The result is always negative

• Adding different signs is not possible

• The sign of the result depends on which type of integer is more in quantity

In a word problem, if you start with $2, spend $3, and then earn $5, what is your final amount?

• $4

• $0

• -$1

• $10