Number Lines. How to Read Number Lines 0 Arrows: The arrows on either end indicate that numbers increase or decrease infinitely. Numbers: Numbers are.

Number Lines

How to Read Number Lines

0

Arrows:

The arrows on either end indicate that numbers increase or decrease infinitely.

Numbers:

Numbers are negative to the left of zero. Numbers are positive to the right of

zero. The numbers increase in value from left to right.

Tick Marks:

Tick marks between integers indicate that the number line is divided into

fractions or decimals.

-1 1 2-2 0.25 or 14

Temperatures on a Number Line

Some temperatures are represented on the number line.

What are the temperatures?

What is the least temperature?

What is the greatest temperature?

0 1 2 3 4 5 6 7-7 -6 -5 -4 -3 -2 -1

Temperatures on a Number Line

Some temperatures are represented on the number line.

What are the temperatures?

What is the least temperature?

What is the greatest temperature?

-6°

4°

-1°-6° 4°

0 1 2 3 4 5 6 7-7 -6 -5 -4 -3 -2 -1

Integers on a Number Line

What number is located 1 tick mark to the right of 3?

Integers are the set of whole numbers and their opposites.

Each tick mark on the number line below represents an integer.

0 3 7-7 -3

What number is located 1 tick mark to the left of 0?

Of the five points shown on the number line, which point is the least?

List the remaining four points in order from least to greatest.

{...-3, -2, -1, 0, 1, 2, 3...}

Integers on a Number Line

What number is located 1 tick mark to the right of 3?

Integers are the set of whole numbers and their opposites.

Each tick mark on the number line below represents an integer.

0 3 7-7 -3

What number is located 1 tick mark to the left of 0?

Of the five points shown on the number line, which point is the least?

List the remaining four points in order from least to greatest.

4

-1

-6

-4 -2 1 6

{...-3, -2, -1, 0, 1, 2, 3...}

Fractions on a Number Line

The number line below has 3 tick marks between the whole numbers.

2 30 1

It is divided into fourths.

The point farthest to the right is 2 tick marks to the right of 2. It represents 2 .

Name the other points.

12

Fractions on a Number Line

The number line below has 3 tick marks between the whole numbers.

2 30 1

It is divided into fourths.

The point farthest to the right is 2 tick marks to the right of 2. It represents 2 .

Name the other points.

12

[ , 1 , 1 ] 34

34

14

Fractions on a Number Line

It is divided into thirds.

The number line below has 2 tick marks between the whole numbers.

3 4 52

The point farthest to the left is 2 tick marks to the right of 2. It represents 2 .

Name the other points.

23

Fractions on a Number Line

It is divided into thirds.

The number line below has 2 tick marks between the whole numbers.

3 4 52

The point farthest to the left is 2 tick marks to the right of 2. It represents 2 .

Name the other points. [ 3 , 4 ]

23

23

13

Decimals on a Number Line

The point located 2 tick marks to the right of 4 is 4.5.

The number line below has 3 tick marks between the whole numbers.

It is divided into fourths.

6 74 5

What is the point located halfway between 4.5 and 5?

How do you know?

Name the other points on the line.

Where would 5.1 and 6.4 be located on the number line?

Decimals on a Number Line

The point located 2 tick marks to the right of 4 is 4.5.

The number line below has 3 tick marks between the whole numbers.

It is divided into fourths.

6 74 5

What is the point located halfway between 4.5 and 5?4.75

How do you know?the number line is divided into fourths, so each tick mark represents 0.25, and the third is 0.75

Name the other points on the line.5.5 6.25 6.75

Where would 5.1 and 6.4 be located on the number line?5.1 would be located just after 5; 6.4 would be located just before 6.5

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