Title: Lesson 9-1
Author: Kathy Halverson
Last saved by: The McGraw-Hill Companies
Company: Halverson Household

Lesson 5-4

For Examples 1-2	Find Square Roots
Find each value.
a. 	 indicates the positive square root of 25.
      Since 5^2 = 25,  = 5.

b.  -	- indicates the negative square root of 49.
     Since 7^2 = 49, - = -7.

For Examples 3-4 Compare Numbers on a Number Line
c. Order each number from least to greatest.

3.5, , , 

Write each number as a decimal. Graph the numbers. 
3.5 = 3.5,  = 3,  = 4,  = 3.2

The order from least to greatest is , , 3.5, .

For Examples 6-7 Order of Operations
d. Simplify .
	Find the value of 6^2 and 8^2.
                           	Add the numbers inside the radical sign.
                           	Find the square root of 100.
                           = 15 + 10	Divide 30 and 2.
                           = 25	Add 15 and 10.