NAME DAT E

Lesson l Homework Practice

尺a f/onaI MmbeIS

Write each fI.aCtion or mixed number as a decimal.

1・‡

4書

7・ 3三

10・一言

2・言

5・-詰

8・ 4言

11・-藍

3言

6・-三

9・言

12・ -霊

Write each decimal as a fraction or mixed number in simplest form.

13. -0.8　　　　　　　　　　　　14. 0.44

16. 0.8　　　　　　　　　　　　17.-1.与

19. POPULATION Refer to the table at the right.

a. Express the fraction for Asian as a decimal.

b. Find the decimal equivalent for the fraction

Ofthe population that is African American.

C. Write the fraction for Hispanic as a decimal.

20. MEASUREMENTS Use血e figure at the right.

a. Write the width ofthe jellybean as a fraction.

b. Write the width ofthe jellybean as a decimal.

Course 3. Chapter l ReaI Numbe「s

15. -1.35

18. 4.45

PERiOD

∵ ���∴　∴予言∵∴∴∴∴∴;∴∴

耳 � �

Asian ���1 〇〇〇〇〇〇〇〇

与0

AfricanAmerican ���4 2与

Hispanic ���1 ●--

与

1

NAME DAT E

Lesson 2 Homework P「actice

Powers and Exponents

Write each expressIOn uSlng eXPOnentS.

1・ 3 ・ 3 ・m　　　　　　2・(三)(三) (三)

3.2・d・5・d・d・5　　　　　　　　4.p・(-9)・p・⊂9).p.q.q

5.g・(-7).(-7).g.h.(-7)・h　6.詰・…・y・三・y・X

Evaluate each expressIOn.

7. (-8)4

10. (-2)3十与2　　　　11.34 -与2

13.43÷23 14.与3 ●23

ALGEBRA EvaIuate each expressIOn.

16.γ3-S,ifr=5ands=4

18.f -g4, iU=3 andg=-5

9・ (-三)与

12. (-2)与- (-2)4

15. 17十(-3)4

17.m2 -7t3,ifm=6andn=2

19. (X与-y2)2十x3,ifx二2狐dy=8

20. R。Pla。。 □ with<, >, 。r=tO make atrue statement: 24 □ 42.

PERIOD

21. ISLANDS FIorida has about 22. 32. 53islands (OVer lO acres). About how many islands is this?

Cou「se 3. Chapter l Reai Numbe「s 3

NAME DAT E

Lesson 3 Homework Practice

M〃lt小Iy and Divide Monomfats

Simplify. Express using exponents.

1.k8●た　　　　　　　　　　　　　　2.亡7●き6

4. 3e3 ・ 7e3　　　　　　　　　5.4γ4(一4γ3)

7. (一11w4)(-5w3㌔)　　　　　8. (-4b6)(-b2c3)

10・‡　　　　　　11・芋

13・若　　　　　14・誓

16・y6 ÷y3 17・詳

3.2w2●5w2

PERIOD

6. (-3さ2w3)(2ル4)

9. (10亡4扉)(3t2扉)

12・霊

15・誓

18・霊

19・ Sim幽霊　　　　　　　　　　　　　　　　、

20. BONUSES A company has set aside lO7 dollars for amual empIoyee bonuses. If血e company has lO4 employees

and the money is divided equally anong them, how much wi11 each empIoyee receive?

21. CAR LOANS After making a down payment, Mr. Valle will make 62 monthly payments of 63 dollars each to pay

for his new car. What is the total ofthe monthly payments?

Course 3. Chapte「 1 ReaI Numbe「s 5

NAME DATE

Lesson 4 Homework Practice

Powers of Monomiats

SimpIify

l. (6亡与)2　　　　2. (4w9)4　　　　　3. (12k6)3　　　　4・ (1与m8)3

5. (4d3e与)7　　　6. (鵜4γ6s1与)4　　　7. [(72)2]2　　　　8. [(32)2]3

9・ (三α6b9)2　10・ (4均3(3x6)4　11・ (0・6p与)3　　12・ (三w与珂2

GEOMETRY Express the area of each square below as a monomial.

14.

PERIOD

15. MEASUREMENT In the Metric System, yOu WOuld need to have (104)2 grams to equa1 1 metric ton・ Simplify this

measureme血by multiplying the exponents, then simplify by finding the actual number of grams needed to equa1 1

metric ton.

16. GAMENG A video-game designer is using the expression 6713 in a program to detemine points eamed, Where n is

the game level. Simplify the expression for the?t2 1evel.

Course 3. Chapte「 1 Reai Numbe「s 7

NAME DATE

Lesson 5 Homewo「k Practice

Negauve Exponents

Write each expression using a positive exponent.

1. 8‾与　　　　　　　2. 3‾9

Evaluate each expression.

5. (-6)‾5　　　　6. 8‾4

3. z‾2

7. 2‾9

4・ p-4

8. (-7)‾9

Write each fraction as an expression using a negative exponent.

9・去　　　10・ま　　　　11・三 12・圭

Simpli邸Express using positive exponents・

13・霊　　　14・れ-2 ・証　15・霊　　　16・霊

PERiOD

17. ROADS A state highway that is 44 miles Iong runs parallel to a sma11er country road that is 42 miles Iong. How

many times longer than the country road is the state highway? Write the answer as a number with a positive

exponent.

18. FUNDRAISERS The hospital spent 95 dollars on new medical equipme血this year. Last year, they spent 97 dollars.

How many times more money did they spend last year than this year?

19. MEASUREMENT l milligran is equal to lO-3 grans. write this number using a positive exponent.

20. DISTANCE A long-distance rumer則nS 25 miles one week and 27 miles the next week. How many times farther

did he run in the second week than in the first week?

Course 3. Chapter l Real Numbe「s 11

NAME DATE

Lesson 6 Homework Pract冒ce

Scien抑c Notauon

Write each n2umber in standard form.

1.9.03 × 102

5.5.1 × 10‾2

2.7.89 × 103

6.7.7 × 10‾与

Write each number in scienti範c notation.

9. 4,400　　　　　　　　　10. 75,000

13. 0.084　　　　　　　　　　　14. 0.0099

17. Which nunber is greater‥ 3.5×104 0r 2.1×1O6?

18. Which number is less: 7.2×107 0r 9.9×105?

19. POPULATION The table lists the populations of

five countries. List the countries from least to

greatest population.

3.4.115×10与

7.3.85 × 10‾4

11. 69,900,000

PERiOD

4.3.201 × 106

8. 1.04 × 10‾3

12. 575,000,000

15. 0.000000515　　　　　　　　16. 0.0000307

Australia �2×107

Brazil �1.9×108

Egypt �7,7×107

Luxembourg �4,7×10与

Singapore �4,4×106

20. SOLAR SYSTEM Pluto is 3.67 ×109 miles from the Sun. Write this number in standard form,

21. MEASUREMENT One centimeter is equal to about O.0000062 mile. Write this number in scient拍c notation.

22. DISASTERS In 2005, Hurricane Katrina caused over $125 billion in damage in the southem United States. Write

$ 125 bi11ion in scientific notation.

Cou「se 3. Chapter l Real Numbe「s 13

NAME DATE

Lesson 7 Homework Practice

Compute wi肋Scien醐c Nofaf;on

Evaluate each expression. Express the result in scientific notation.

1. (7.3 × 108)(2.4 ×103)

5. (9.67×106)十( 3.4与×10与)

7. ( 2.82×109)十( 6,3×107)

11. (9,8×10与)-(6.7×103)

13. (2.46×107)(1,78×102)

2.

4. (与.32×108)-(4,6×106)

6. ( 4.与×103)( 1,6×10与)

8. ( 3,64×106)-( 2.18×104)

10. ( 7,2×107)( 1,82×102)

12. (6,98×105) + (1.65×107)

14.

PERiOD

15. MARS The diameter ofMars is about 6.8 × 103 kilometers. The diameter ofEarth is about l.2763 ×104 kilometers.

About how much greater is Earth’s dianeter than the diameter of Mars?

16. WAREHOUSE A factory builds a new warehouse that is approximately l.28 ×105square feet. Later, they add on

l・13 ×1O3 more square feet for o飾ces. Use scientific notation to write the total size ofthe new building.

Cou「se 3. Chapte「 1 Real Numbe「s 15

NAME DATE

」esson 8 Homework Pract冒ce

Roots

Find each root.

1. J蕗

5. ±J∑二兎

9.〇億

2. -1斤両

6・土居

10. -売高

ALGEBRA SoIve each equation. Check your so看ution(S).

13.九2二121　　　　　　14.324こa2

16.0,01%二m2　　　17.Jテ= 6

3雷

11・書店

15・X2=岩

18.寿二8.4

PERIOD

4.昨二両を

8. ±J両面云

12. ±J疎石

19. GARDENENG Moesha has 196 pepper plants that she wants to plant in square fomation. How many pepper plants

Should she plant in each row?

20. RESTAURANTS A new restaurant has ordered 64 tables for its outdoor patio. Ifthe manager ammges the tables in

a square fomation, how many will be in each row?

GEOMETRY The formula for the perimeter ofa square isP= 4sタWhere s is the length ofa side. Find the perimeter

Of each square.

Course 3. Chapter l Real Numbe「S 17

NAME DATE

」esson 9 Homework P「act冒ce

Estimate Roots

Estimate to the nearest integer.

1.佃　　　　　　　　　2.V再

5.極　　　　　　　　6.睡

9.佃石　　　　　　　10.府

Order from least to greatest.

13. 8, 10,府,J両　　14.車両, 9, 6,√喬　　　　15.J而,7,佃, 5

PERIOD

12.

ALGEBRA Estimate the solution of each equation to the nearest integer.

16.d2=61　　　　　　17.z2=85　　　　　　　　18.γ2=3.7

19. GEOMETRY The radius of a cylinder with volume Vand height lO centimeters is approximately

is lO centimeters tall has a volume of 900 cubic centimeters, eStimate its radius.

27言

. Ifa can that

20. TRAVEL The fomula s = /両石can be used to find血e speed s ofa car in miles per hour when the carneeds dfeet

to come to a complete stop after slanming on the brakes・ Ifit took a car 12 feet to come to a complete stop after

Slamming on the brakes, eStimate the speed ofthe car.

GEOMETRY The formula for the area ofa square isA = S2? Where s is the length ofa side. Estimate the length ofa

Side for each square.

Course 3. Chapter l ReaI Numbe「s 19

NAME DATE

Lesson lO Homework Practice

Compare Real Numbers

Name all sets of numbers to which the reaI number beIongs.

1. -9

5. 9.55

2.∨而　　　　　　3.席

6. 5.3 7・芋

Rep獲ace @ each with <, >’Or = tO make a true statement.

9.J百態2.7　　　　　　　　10.所与轡3.9

12・ 2言鬱価 13. J弓而鯵3.壬

4・言

8.一幅

11・5三総点而

14・ 8・事態8言

PERiOD

Order each set of numbers from Ieast to greatest. Verify your answer by graphing on a number line・

15雷雨, ヽ厄2.75, 2.豆　　　　16. 5.01, 5.0壬, 5.而, J蕗　　　　17. -佃,立正, -3.5, 3.5

18. ALGEBRA Thegeome舟・ic mean oftwo numbers a and b is VあFind the geometric mean of32 and 50.

19. ART The area ofa square painting is 600 square inches. To the nearest hundredth inch’What is the perimeter ofthe

Painting?

Course 3. Chapter l ReaI Numbe「s 21