Name
Date
TEKS 7.1.C
LESSON
Class
Practice
9-7 Powers and Roots
Find each square.
1. 62
2. 192
3. 132
4. 42
5. 102
6. 142
7. 202
8. 182
Find each square root.
9. 289
10. 49
11. 256
12. 81
13. 121
14. 625
15. 576
16. 900
Estimate each square root to the nearest whole number.
17. 11
18. 31
19. 98
20. 50
21. 152
22. 14
23. 70
24. 28
25. 39
26. 193
27. 119
28. 85
29. 5
30. 42
31. 75
32. 215
33. The area of a square vegetable garden is 75 ft2. What is
the approximate length of each side of the garden?
Find your answer to the nearest foot.
34. The area of a computer screen is 138 in2. What is the
approximate length of each side of the screen? Find your
answer to the nearest inch.
35. Tim broke a square picture window with his baseball. The area
of the window is 52 ft2. What is the approximate width of the
window to be replaced? Find your answer to the nearest foot.
36. A square tile has an area of 413 cm2. What is the approximate
length of a side of the tile? Find your answer to the nearest
centimeter.
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
85
Holt Mathematics
Name
Date
TEKS 7.1.C
Class
Practice
LESSON
9-7 Powers and Roots
Find each square.
1. 62
36
2. 192
361
3. 132
169
4. 42
16
5. 102
100
6. 142
196
7. 202
400
8. 182
324
Find each square root.
9.
289
17
10.
49
7
11.
256
16
12.
81
9
13.
121
11
14.
625
25
15.
576
24
16.
900
30
Estimate each square root to the nearest whole number.
17. 11
3
18. 31
6
19. 98
10
20. 50
7
21. 152
12
22. 14
4
23. 70
8
24. 28
5
25. 39
6
26. 193
14
27. 119
11
28. 85
9
30. 42
6
31. 75
9
32. 215
15
29. 5
2
33. The area of a square vegetable garden is 75 ft2. What is
the approximate length of each side of the garden?
Find your answer to the nearest foot.
9 ft
34. The area of a computer screen is 138 in2. What is the
approximate length of each side of the screen? Find your
answer to the nearest inch.
12 in.
35. Tim broke a square picture window with his baseball. The area
of the window is 52 ft2. What is the approximate width of the
window to be replaced? Find your answer to the nearest foot.
36. A square tile has an area of 413 cm2. What is the approximate
length of a side of the tile? Find your answer to the nearest
centimeter.
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
85
7 ft
20 cm
Holt Mathematics