Transcript Comparing and Ordering Real Numbers

Comparing and Ordering Real
Numbers
SWBAT compare and order real
numbers
Ordering on a number line

Origin


Positive numbers


Zero on the number line
Correspond to points to the right of the
origin
Negative numbers

Correspond to points to the right of the
origin
Ordering numbers

Change all of your numbers into the
same form



Put them in order


-2.2, √9, 0, -5/2, -1.3
-2.2, 3, 0, -2.5, -1.3
-2.5, -2.2, -1.3 , 0, 3
Write them in their original form

-5/2, -2.2, -1.3, 0, √9
In your workbook

Complete problems 26-31 on page
4
Absolute Values and Additive
Inverse
SWBAT define absolute value and
additive inverse; complete problems
with absolute values
Definitions

Absolute value




The distance from zero
|n|
Always a positive number
Additive inverse


Fancy word for opposite
The same number from zero on a
number line, but on the opposite side
Write the opposite




-3.9
3
5/2
-6
Calculate




-|9●75|
-|3.9+5.2|
|-√16- (-5)|
|√49|- | -√36|
In your workbook

Complete problems 14-25 on page
4