Number Lines



Number Lines

These are some suggested activities or a place to begin with number lines. Please add or change these to fit the needs of your class. Activities from other grade levels might be helpful for your students. (Janie)

K/1

1. Say the numbers to 100

2. Skip Count: 2s, 5s, 10s, odds, evens, and backwards

3. Addition: (Foreword hops) Add 1

Add 2

Doubles to 20

Doubles plus 1 to 20

Different number combinations

Add 10

4. Subtraction: (Backward hops) Subtract 1

Subtract 2

Different number combinations

Subtract 10

5. Place Value: 43, How many tens in this number? Ones?

6. Order/Compare: What number comes before/after 26? Show me

on the number line.

What number is between 33 and 35? Odd/even?

Find 12 and 18. Which is the least? Greatest?

7. Calendar: It is a number line. Count days and weeks.

8. Play Twenty Questions: Directions in 2/3.

2/3

1. Vocabulary: Read and write the number words to one hundred.

2. Skip Count: 2s, 5s, 10s, 3s, 4s, 25s in second

3s, 4s, 6s, 7s, 8s, 9s, 25s in third

3. Patterns: Begin with 15 and count by 2s

Begin with 37 and count by 2s

4. Addition/Subtraction: Use K/1 above as a review.

5. Multiplication: Find the sixes. Sevens. Eights. Nines.

Jim owns a bike rental shop. He wants to order new

tires for all of his bikes to get them ready for the

summer rental season. He has 5 bikes. How many

tires should he order?

6. Place Value: Use K/1 as a review.

70 + 3 = Find the number

200 + 40 + 5 = Find the number. (Blank number line)

Take 2 tens from 88. Find the number.

7. Order/Compare: Use K/1 as a review.

Use 3 and 4 numbers to find greatest to least and

least to greatest.

Find a number between 78 and 85.

1987, 1865, 1887, 1904, 1776

8. Measurement: Today’s temperature is 56ºF, the sun comes out and it

gets warmer by 6º. What is the temperature now?

Today’s temperature is 75ºF. A cold front blew through

and the temperature dropped by 12º. What is the

temperature now?

Find ½ on the number line.

Each hash mark represents an increase of ¼. Start at ¼

and end at 8/2.

Find 18½ on the number line.

Find 1 hour on the number line. 1foot? Yard?

Find ½ of an hour on the number line.

Mary’s ribbon measures 9 inches. Jennifer’s is 8 inches

long. How long are the girls’ ribbons?

9. Number Sense: Students make number lines giving the fewest

numbers possible on the number line.

Each hash mark represents an increase of 5. Start at

20 and end at 50. Show only 4 numbers on your line.

Each hash mark represents an increase of 3. Start at

9 and end at 30. Show only 5 numbers on your line.

Each hash mark represents an increase of 2. Start at

136 and end at 148. Show only 3 numbers on your

line. (Challenge start 112 and end 142.)

Start with 2. Double it. Double that number. Subtract

5. Where do you land?

Start with 2. Add 4. Than add 9. Jump forward 8.

Then subtract 15. Where do you land?

10. Rounding: 21 Which tens place is it closer to: 20 or 30?

11. Twenty Questions:

Select a mystery number between 0 and 50. Write the mystery number on a piece of paper but do not show it. Ask students to guess the mystery number by asking questions that can be answered with “yes”

or “no”. Make a T-chart to record their questions and answers. As their questions are answered, ask students to cross out numbers on the number line that can be eliminated as possible answers. Remember, the goal is to find the mystery number in 20 questions or less.

Examples of Questions:

Is the mystery number smaller than 20?

Is it greater than 40?

Is it a multiple of 3?

Is it an even number?

Is it a multiple of 5?

Once the mystery number has been found, give students an opportunity to go back over their list of questions. Encourage them to describe the strategies they used for asking questions. Play the game a few more times. As students get better at playing the game, challenge them to guess the mystery number in 10 questions or less, and then in as few questions as possible.

Students may begin to notice that questions that narrow the range of possible numbers will be the most useful. For example, if the answer to Is it greater than 25? Is yes, the range narrows to 25-50, eliminating half the potential answers choices.

As students become more comfortable playing the game, increase the range of possible mystery numbers from 0-100: from 0-1,000

4/5

1. Skip Count: 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 25s

Discuss patterns found when counting.

What do the numbers have in common?

Can you make a rule that fits the pattern?

2. Patterns: 7, 12, 16, 19, 21, __

35, 28, 22, __, 13

3. Order/Compare Decimals and Fractions: 1.12, 0.12, 11.2, 0.11

0.25, 0.33, 0.17, 0.65

6¾, 6¼, 6½, 6, 7¼

Michael needed some bookshelves to fill a wall. The wall measures

12 feet and the bookshelves are 3½ feet wide. How many sets of

bookshelves does he need to fill his wall?

If Janet correctly marked 0.13, 3/2, 0.032, and 1/3 on a number line,

which number was closest to zero?( Number line showing 0, 1, 2, and

½ space marked between the numbers)

4. Measurement: How many weeks in 42 days?

How many days in 96 hours?

How many decimeters in 80 centimeters?

How many ounces in 5 cups?

How many pints in 3 quarts?

How many minutes in ½ of an hour? 1½ hours?

How many inches in 7 feet?

How many yards in 72 inches?

How many quarts in 8 gallons?

The temperature was 36º F early this morning. By

noon the sun had warmed the area 12º . A cold front

moved in and the dropped the temperature 7º by 4:00 in

the afternoon. What is the current temperature in

McKinney?

5. Prime or composite: number line 21-30, place a point on the composite numbers. Change the numbers on the line and the directions to locate the prime numbers.

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