t oday we will identify and represent positive numbers on a number line identify = point out...

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TODAY WE WILL IDENTIFY AND

REPRESENT POSITIVE NUMBERS ON A NUMBER

LINEIdentify = point out

Represent = stand for

Positive number = number greater than zero

Number line= line in which indicate the sequence of numbers

NUMBER LINE!

Number lines are used for many things! A few of the uses of number lines are to:

Add Subtract

21 7 86543 130 9 10 11 12

5 + 3 = 8 6 - 5 = 1

POSITIVE NUMBERS

All numbers that are greater than zero! Remember that if a number does not have a

sign next to it, then it is positive!

Some examples are:7, 8, +8, 9, +19,

1,000,000 etc.

Non-examples are:-1, -3, -1,000,023

NUMBER LINE

a number line is a picture of a straight line on which every point corresponds to a

real number and every real number to a point.

6543 130 9 10 11 1221 7 8

HINT

If you don’t see a negative or positive sign in front of a number it is positive.

9+

6543 130 9 10 11 1221 7 8

LET’S PRACTICE IDENTIFYING POSITIVE INTEGERS!

Steps:1.Look at the point 2.Look at the point above the number line3.Where is it located?4.Write that number down!

A.

Where is point A located?

That’s right! 6

6543 130 9 10 11 1221 7 8

LET’S PRACTICE IDENTIFYING POSITIVE INTEGERS!

Steps:1.Look at the point 2.Look at the point above the number line3.Where is it located?4.Write that number down!

x.

Where is point x located?

That’s right! 11

6543 130 9 10 11 1221 7 8

LET’S PRACTICE IDENTIFYING POSITIVE INTEGERS!

Steps:1.Look at the point 2.Look at the point above the number line3.Where is it located?4.Write that number down!

t.

Where is point t located?

That’s right! 0

21 7 86543 130 9 10 11 12

NOW LET’S PRACTICE REPRESENTING POSITIVE INTEGERS ON A NUMBER

LINE!

Steps:1.Look at the number you are going to represent2.Look at the number line and think where it is going to be placed3.Represent on the number line above the number

Represent point x on the number line Draw and label it on the

number line at 8

X.

21 7 86543 130 9 10 11 12

NOW LET’S PRACTICE REPRESENTING POSITIVE INTEGERS ON A NUMBER

LINE!

Steps:1.Look at the number you are going to represent2.Look at the number line and think where it is going to be placed3.Represent on the number line above the number

Represent point a on the number line Draw and label it on the

number line at 0

a.

21 7 86543 130 9 10 11 12

NOW LET’S PRACTICE REPRESENTING POSITIVE INTEGERS ON A NUMBER

LINE!

Steps:1.Look at the number you are going to represent2.Look at the number line and think where it is going to be placed3.Represent on the number line above the number

Represent point b on the number line Draw and label it on the

number line at 13

b.

LET’S SEE WHAT WE’VE LEARNED!

What is a number line?

What are positive integers?8+8

21 7 86543 130 9 10 11 12

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