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Name _______________________________________ Date __________________ Class __________________
Exponents and Roots – MATH 8 BOOK
LESSON 3-5 - Practice C: Squares and Square Roots
* COMPLETE HIGHLIGHTED NUMBERS ONLY!
Find the two square roots of each number.
1. 225
2. 576
_______________
5. 400
3. 361
_______________
6. 729
_______________
4. 625
_______________
________________
7. 1024
_______________
8. 2500
_______________
________________
Simplify each expression.
9.
1
9
10.
_______________
13.
81
324
11.
_______________
14.
_______________
17. 2
144
4
144
4
36
_______________________
196 
49
_______________
18.
64
3
16
12.
_______________
15. 6( 225  9)
16.  ( 144
64 )
________________
19. 49 
________________________
4
________________
_______________
676  15
100

4
441 
169
________________________
20. The distance from base to base, home plate included, on a
baseball field is 90 ft. The bases form a square. What is its
area?
________________________________________________________________________________________
Switzerland’s flag is a square, unlike
other flags that are rectangular.
21. Suppose a seamstress is making a
flag that has to have an area less
than 50 square meters. What is the
longest length, to the nearest tenth,
the sides can be?
(Hint: s 
A)
_______________________________________
Holt McDougal Mathematics
Name _______________________________________ Date __________________ Class __________________
Exponents and Roots – MATH 8 BOOK
LESSON 3-6 - Practice C: Estimating Square Roots
Each square root is between two consecutive integers. Name
the integers. Explain your answer.
* COMPLETE HIGHLIGHTED NUMBERS ONLY!!!
1.
2.
75
_______________________________________
3.
180
104
________________________________________
4.
_______________________________________
230
________________________________________
DO NOT use a calculator to find each value. Round to the
nearest tenth. Use the indicated letter to graph each point on
the number line.
5. A:
6. B:  2.56
1.21
7. C:
8. D:  0.09
0.36
Use guess and check to estimate each square root to the
nearest hundredth.
9.  141
10.
_______________
11.  0.0245
195
_______________
12.
_______________
47.7
________________
Find each product to the nearest hundredth.
13.
64 •
24
14.  53 •
_______________
17.
112 •
38
_______________
38
_______________
18.
77 •
142
_______________
15.
35 • ( 16 )
16.
_______________
19.  66 • ( 98 )
25 •
28
________________
20.
_______________
81 • ( 217 )
________________
21. If the distance in feet traveled by a falling object is determined by
the formula d  16t2, in which t is the time in seconds, find the
distance a falling object traveled in 22 sec.
________________________________________________________________________________________
22. If the distance traveled by the falling object was 3600 ft, how many
seconds did it take to fall?
________________________________________________________________________________________
Holt McDougal Mathematics