Square Roots and Real Numbers

Name Date Class

Practice C

Square Roots and Real Numbers

Find each square root.

1. 2. - 3.

4. 5. - 6. -

7. A student is painting one wall of a room. A square
window is located in the middle of the wall to be
painted. The window measures 3 feet on one side.
The area of the wall, not including the window,
is 80 ft2. Find the height of the wall to the
nearest tenth.

Write all the classifications that apply to each real number.

8. 9.

10. -14 11. -

1-37 Holt McDougal Algebra 1

Name Date Class

1-37 Holt McDougal Algebra 1

LESSON 1–5

Practice A

1. 5 2. -2

3. 4. 4

5. -10 6. -

7. 8.7 feet 8. 7.1 feet

9. integer, rational, terminating

10. irrational

11. rational, repeating

12. natural, whole, integer, rational, terminating

Practice B

1. 12 2. -6

3. 4. 14

5. -8 6. -

7. 3.5 feet 8. 5.2 feet

9. irrational

10. rational, repeating

11. integer, rational, terminating

12. natural, whole, integer, rational, terminating

13. whole, integer, rational, terminating

14. natural, whole, integer, rational, terminating

Practice C

1. 100 2. -1

3. 4. 25

5. -1.6 6. -

7. 9.4 feet

8. natural, whole, integer, rational, terminating

9. rational, repeating

10. integer, rational, terminating

11. irrational

Review for Mastery

1. 52; 62; 92; 102;
1; 4; 9; 16; 49; 64; 121; 144; 169

2. ; ; ; ; ; ;
1; 2; 5; 6; 7; 10; 11; 12

3. 11 4. -8

5. 16 6. -20

7. 8. -

9. real number, rational number, terminating decimal, integer, whole number, natural number

10. real number, rational number, repeating decimal

11. real number, irrational number

Challenge

1. 730 2. 730

3. 1430 4. 532,900

5. 2,044,900 6. 2,577,800

7. 1606 8. 5226 ft

9. 5226 ft

Problem Solving

1. 11 ft 2. 21 in.

3. rational number; repeating decimal

4. 2.2; irrational

5–7

Side length (in.)
10
14.1
20.5
24

5. A 6. J

7. B

A7 Holt McDougal Algebra 1