Exploring Integer Addition on a Number Line

What is the origin on a number line?

• The number 10

• The number 0

• The number -1

• The number 1

Where are positive numbers located on a number line?

• Above zero

• To the right of zero

• To the left of zero

• Below zero

In an addition problem, what does the first addend indicate?

• The final position

• The starting position

• The number of units to move

• The direction to move

In the problem 2 + 3, where do you start on the number line?

• At 0

• At 5

• At 2

• At 3

In the problem -3 + 4, how many units do you move and in which direction?

• 3 units to the right

• 4 units to the right

• 4 units to the left

• 3 units to the left

In the problem 4 + (-6), where do you land on the number line?

• At 6

• At -6

• At 2

• At -2

What do positive numbers tell you to do on a number line?

• Stay in place

• Move right

• Move up

• Move left

In the problem -1 + (-5), how many units do you move and in which direction?

• 1 unit to the right

• 1 unit to the left

• 5 units to the left

• 5 units to the right

What is the sum of -1 + (-5)?

• -4

• 6

• -6

• 4

What is the final step in solving an addition problem on a number line?

• Determining the sum

• Identifying the first addend

• Finding the origin

• Counting the units