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Comparing and  Ordering Comparing and  Ordering

Comparing and Ordering - PowerPoint Presentation

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Uploaded On 2018-10-08

Comparing and Ordering - PPT Presentation

R ational Numbers TeacherTwins2014 2 Warm Up Identify all sets to which each number belongs 1 2 45 3 376 4 5 Simplify the following fraction   Rational number ID: 686602

rational number ordering comparing number rational comparing ordering compare decimals integer digits method fractions larger practice numbers false

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Presentation Transcript

Slide1

Comparing and

Ordering Rational Numbers

TeacherTwins©2014Slide2

2)

Warm UpIdentify all sets to which each number belongs.

1).

2). -45

3). 3.76

4). 5). Simplify the following fraction:

 

Rational number

Rational number, integer

Rational number

Rational number, integer, whole number

 Slide3

Comparing Fractions

Comparing Decimals

Comparing and Ordering Rational Numbers

FlippableSlide4

Comparing and Ordering Fractions

Method 1Find the common denominator and compare the numerators.

Which number is the smallest

or

?

 Slide5

Method 2

Cross MultiplyExample 1:

Example 2:

 

30

36

12

12

This number is larger so 9/10 is larger.

Both products are the same so they are equal.

 

 Slide6

Practice

Replace with >, <, or =.1).

2).

3).

4).

5).

6).

Order from least to greatest.

7).

8).

 

<

>

>

>

=

>

½, 2/3, 5/6

3/8, 2/3, 3/4Slide7

Comparing and Ordering Decimals

To compare decimals, line up the decimal points and compare the digits from left to right until you find different digits.

Example: 0.726 ___ 0.724

>

Practice

Use < , > or = to compare.1). -0.245 _____ 0.124 2). 3.4567 ____ 3.456793). -4.56 _____ - 4.57 4). 0.98 ____ 0.980<<

>

=the first digit that is

different is 6 and 4 6>4Slide8

Closure

Determine whether the following statement is true or false. Explain your reasoning.

A rational number is always an integer.

False,

is not a rational number.