LESSON Rational and Irrational Numbers 14-1 Practice and Problem ...
Name ________________________________________ Date __________________ Class __________________
LESSON Rational and Irrational Numbers
14-1 Practice and Problem Solving: A/B
Write each fraction as a decimal.
1. 1 8
2. 9 16
________________
5. 14 15
________________
6. 2 7 12
________________
________________
3. 11 20
_______________
7. 3 100
_______________
4. 5 8 25
________________
8. 16 5
________________
Find the two square roots of each number.
9. 25
10. 1
________________
________________
11. 25 4
_______________
12. 121 49
________________
Find the cube root of each number.
13. 8
14. 216
________________
________________
15. 1
_______________
16. 2197
________________
Approximate each irrational number to the nearest hundredth without using a calculator.
17. 32
18. 118
19. 18
20. 319
________________
________________
_______________
________________
Approximate each irrational number to the nearest hundredth without using a calculator. Then plot each number on a number line.
21. 8 _________________
22. 75 _________________
23. A tablet weighs 1.23 pounds. What is its weight written as a mixed number?
_________________________________________________________________________________________
24. The area of a square mirror is 256 in2. A rectangular mirror has a width the same as the square mirror's width. Its length is two inches longer than its width. What is the area of the rectangular mirror?
_________________________________________________________________________________________
Original content Copyright ? by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
308
UNIT 7: Real Numbers, Exponents, and Scientific Notation
MODULE 14 Real Numbers
LESSON 14-1 Practice and Problem Solving: A/B
1. 0.125 2. 0.5625 3. 0.55 4. 5.32 5. 0.93 6. 2.583 7. 0.03 8. 3.2 9. 5, -5 10. 1, -1 11. 5 , - 5
22 12. 11 , - 11
77 13. 2 14. 6 15. 1 16. 13 17. 5.66 18. 10.86 19. 4.24 20. 17.86 21. 2.83
22. 8.66
23. 1 23 lb 100
24. 288 in2
Practice and Problem Solving: C
1. 1.17 in.
2. 7.64 in.
3. Since 41 = 0.82, 9 = 0.81, and
50
11
10 = 0.90 , 41 is closer to 9 .
11
50
11
4. ? 1 2
5. ? 1 4
6. ? 2 3
7. 1.73
8. 4.24
9. When you find a square root, you find two factors that are the same. They can be positive or negative. When you find a cube root, you find three factors that are the same. They are positive.
10. The length of one photo album page is 25 cm. The width of the page is 32 cm.
Practice and Problem Solving: D
1. 0.1 2. 0.55 3. 0.5625
4. 129 500
5. 4 4 5
6. 333 1000
7. 4, -4 8. 7, -7
Original content Copyright ? by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
587
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