Transcript Comparing and Ordering Decimals

When Will I Ever Do That???!!!
 Double
Cheeseburger: $ .99
 Big Mac Value Meal: $ 4.79
 Chicken McNuggett’s Meal: $ 3.80
 Small Drink: $ .99
 McFlurry: $ 1.97
 Salad: $ 4.80
 2 Cheeseburger Meal: $ 3.70
 Ice Cream Cone: $ .87
 Ice
Cream Cone
 Double Cheeseburger:
 Small Soft Drink:
 McFlurry:
 2 Cheeseburger Meal:
 Chicken McNuggetts Meal:
 Big Mac Value Meal:
 Chicken Salad:
.87
.99
.99
1.97
3.70
3.80
4.79
4.80
1,000 100 10
1
0.1
0.01 0.001 0.0001
When we compare we use terms
such as:
Less
than
Greater
Equal
to
than
<
>
=
Half Pipe Results
Sara
Compare Sara’s score with
Danny’s score.
42.1
1.
Danny
42.5
Line Up Decimal Points
 Sara:
42.1

Ross
42.0
Bethany 40.7
Jacob
46.1
2.
3.
Danny: 42.5
Add zeroes if needed.
Start at the left and find the
first place where the digits are
different.
Sara’s score was less than
Danny’s score.
Sara
Danny
Ross
Bethany
Jacob
42.1
42.5
42.0
40.7
46.1
42.0
42.1
42.2
42.3
42.4
42.5
Numbers to the right are
greater than numbers to the
left. Since 42.5 is to the right
of 42.1 we have:
42.5 > 42.1
OR
42.1 < 42.5
Number Line
.6
A
.12
What is the value of A?
To find it you have to identify the
number pattern.
How do I get from .6 to .12?
Number Line Example
•Find ‘a’ on the number line below.
• Find ‘b’ on the number line below.
9.0
a
10.0
b
11.5
13.0
 Decimals
that name the same number are
called equivalent decimals.
 0.60 and 0.6
 Are
these the same???
0.60
0.6
=
Ordering Decimals:

First, line up the decimal points
15.00
14.95
15.80
15.01
Second, add zeroes if needed.
 Finally, compare the decimals. Always start from the
left!!

Answer:14.95,
15, 15.01, 15.8
 Order
these numbers from greatest to least
 35.06, 35.7, 35.5, 35.849
 Order
these numbers from least to greatest
 0.018, 0.013, 0.28, 0.205, 0.035
 Compare,
use these symbols < , >, =
 0.14
0.041
 0.760
0.76
 12.23
12.79