SOLUTIONS for
TU
Developmental Mathematics: Basic
Mathematics and Algebra, 4th edition
Author (s): Margaret L. Lial, John Hornsby
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, 1.1 Reading and Writing Whole Numbers 1
CHAPTER 1 WHOLE NUMBERS
1.1 Reading and Writing Whole (c) "!!,!(&,!!# is one hundred million, seventy-
five thousand, two.
TU
Numbers
(d) "",!##,!%!,!!! is eleven billion, twenty-two
1.1 Margin Exercises million, forty thousand.
1. (a) $%# 6. (a) One thousand, four hundred thirty-seven is
% is in the tens place. "%$(.
(b) ("% (b) Nine hundred seventy-one thousand, six is
*(",!!'Þ
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% is in the ones place.
(c) Eighty-two million, three hundred twenty-
(c) %(* five is )#,!!!,$#&.
% is in the hundreds place. 7. (a) The U.S. population in the 2015 column is
2. The place value of each digit: $25 million and is written in digits as
A
$25,!!!,!!!.
(a) 14,218
(b) The estimated U.S. population in the 2020
1: ten-thousands
column is $41 million and is written in digits as
4: thousands $41,!!!,!!!.
2: hundreds (c) The household income in 2010 was $%6,326
A
1: tens and is written in words as forty-six thousand,
8: ones three hundred twenty-six dollars.
(b) 460,329 (d) The estimated average yearly salary in 2020
PP
is $$6,169 and is written in words as thirty-six
4: hundred-thousands thousand, one hundred sixty-nine dollars.
6: ten-thousands
1.1 Section Exercises
0: thousands
1. The digit in the hundreds place in the whole
3: hundreds number $!'& is !. (c)
2: tens
2. The digit in the ten-thousands place in the whole
R
9: ones number "$%,')" is $. (b)
3. The digits in each period (group) of 3. "),!"&; ten-thousands: "; hundreds: !
$,#&",'!*,$#):
4. )',$$#; ten-thousands: ); ones: #
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(a) $ is in the billions period.
5. (,'#),&*#,")$; millions: ); thousands: #
(b) #&" is in the millions period.
6. ",(!!,##&,!"'; billions: "; millions: !
(c) '!* is in the thousands period.
VE
7. The digits in the thousands period in the whole
(d) $#) is in the ones period. number &&#,')(,$") are ')(.
4. (a) ") is eighteen. 8. The digits in the millions period in the whole
(b) $' is thirty-six. number *(%,$#",)(',&#) are $#".
(c) %") is four hundred eighteen. 9. $,&'",%$&; millions: $; thousands: &'"; ones: %$&
(d) *!# is nine hundred two. 10. "!!,#&),"!!,!!'; billions: "!!; millions: #&);
D
thousands: "!!; ones: '
5. (a) $"!% is three thousand, one hundred four.
11. Evidence suggests that this is true. It is common
(b) *&,$(# is ninety-five thousand, three hundred to count using fingers.
seventy-two.
?
Copyright © 2018 Pearson Education, Inc.
, 2 Chapter 1 Whole Numbers
12. No doubt there is a relationship here. One 31. The least used method of transportation is public
answer might be that people could count using transportation. ',!'*,&)* in words is six million,
their fingers and toes and, therefore, thought of sixty-nine thousand, five hundred eighty-nine.
them as numbers or digits.
TU
32. From the table, "drive alone" is the method of
13. #$,""& is twenty-three thousand, one hundred transportation most used. )%,#"&,#*) written out
fifteen. The statement is false (no "and"). is eighty-four million, two hundred fifteen
thousand, two hundred ninety-eight.
14. $(,))' is thirty-seven thousand, eight hundred
eighty-six. The statement is true. 33. The number of people who walk to work or work
at home is (,)*%,*"". In words, (,)*%,*"" is
15. $%',!!* is three hundred forty-six thousand,
written as seven million, eight hundred ninety-
nine.
VI
four thousand, nine hundred eleven.
16. #"),!$$ is two hundred eighteen thousand,
34. From the table, the number of people who
thirty-three.
carpool is "&,$((,'$%. Written in words,
17. #&,(&',''& is twenty-five million, seven hundred "&,$((,'$% is fifteen million, three hundred
fifty-six thousand, six hundred sixty-five. seventy-seven thousand, six hundred thirty-four.
A
18. ***,**$,!!! is nine hundred ninety-nine million,
nine hundred ninety-three thousand. 1.2 Adding Whole Numbers
19. Sixty-three thousand, one hundred sixty-three is 1.2 Margin Exercises
'$,"'$Þ 1. (a) # ' œ ); ' # œ )
A
20. Ninety-five thousand, one hundred eleven is (b) * & œ "%; & * œ "%
*&,"""Þ
(c) % ( œ ""; ( % œ ""
21. Ten million, two hundred twenty-three is
"!,!!!,##$. 2. (a) $
PP
) $ ) œ ""
22. One hundred million, two hundred is
"!!,!!!,#!!Þ & "" & œ "'
% "' % œ #!
23. Seventy-nine million, six hundred eighty ' #! ' œ #'
thousand in digits is 79,680,000.
#'
24. Two hundred forty-three thousand in digits is
(b) &
R
#%$,!!!Þ
' & ' œ ""
25. Fifty million, fifty-one thousand, five hundred $ "" $ œ "%
seven in digits is &!,!&",&!(. # "% # œ "'
O
26. Fifty-two thousand, eight hundred in digits is % "' % œ #!
52,800. #!
27. Fifty-four million, seven hundred fifty thousand (c) *
in digits is &%,(&!,!!!Þ
VE
' * ' œ "&
28. Two hundred twenty-one thousand in digits is ) "& ) œ #$
##",!!!Þ ( #$ ( œ $!
$ $! $ œ $$
29. Eight hundred trillion, six hundred twenty-one
million, twenty thousand, two hundred fifteen in $$
digits is )!!,!!!,'#",!#!,#"&. (d) $
30. #,3&$,)*',%%) is two billion, three hundred fifty- ) $ ) œ ""
D
three million, eight hundred ninety-six thousand, ' "" ' œ "(
four hundred forty-eight. % "( % œ #"
) #" ) œ #*
?
#*
Copyright © 2018 Pearson Education, Inc.
, 1.2 Adding Whole Numbers 3
3. (a) #' (b) &$% (b) "&,)#*
($ #'& ('&
** (** ()
TU
"&
(c) %#,$!&
*
"",&'$
(
&$,)')
"$,"(*
" #*,))#
4. (a) ''
# ( ' ones and ( ones œ "$ ones 7. The shortest route from Lake Buena Vista to
*$ Conway is as follows:
VI
" % Lake Buena Vista to Resort Area
(b) &)
' Resort Area to Pine Castle
$ $ ) ones and $ ones œ "" ones
$ Pine Castle to Belle Isle
*"
' Belle Isle to Conway
"
miles
A
(c) &' "*
$ ( ' ones and ( ones œ "$ ones 8. The next shortest route from Orlando to Clear
*$ Lake is as follows:
" & Orlando to Pine Hills
(d) $%
) Pine Hills to Altamonte Springs
% * % ones and * ones œ "$ ones
A
& Altamonte Springs to Casselberry
)$
' Casselberry to Bertha
" #" ( Bertha to Winter Park
5. (a) % " '#
Winter Park to Clear Lake
PP
% #( " (
$( # $) miles
) *( ' ##
9. &#'
"$, () "
#*(
# #"
(b) ( ) #" &#'
%$ & #*(
R
(# "'%' feet
$! & The amount of fencing needed is "'%' feet,
" '* $ which is the perimeter of (distance around) the
O
"!, $# ' project.
6. (a) )"' 10. (a) '$
$'$ %
VE
"( *
# #)
& "!% correct
('&%
(b) *#(
))&( $*&
'%
#&"
D
"'$( correct
?
Copyright © 2018 Pearson Education, Inc.
TU
Developmental Mathematics: Basic
Mathematics and Algebra, 4th edition
Author (s): Margaret L. Lial, John Hornsby
VI
A
A
PP
R
O
VE
D
??
, 1.1 Reading and Writing Whole Numbers 1
CHAPTER 1 WHOLE NUMBERS
1.1 Reading and Writing Whole (c) "!!,!(&,!!# is one hundred million, seventy-
five thousand, two.
TU
Numbers
(d) "",!##,!%!,!!! is eleven billion, twenty-two
1.1 Margin Exercises million, forty thousand.
1. (a) $%# 6. (a) One thousand, four hundred thirty-seven is
% is in the tens place. "%$(.
(b) ("% (b) Nine hundred seventy-one thousand, six is
*(",!!'Þ
VI
% is in the ones place.
(c) Eighty-two million, three hundred twenty-
(c) %(* five is )#,!!!,$#&.
% is in the hundreds place. 7. (a) The U.S. population in the 2015 column is
2. The place value of each digit: $25 million and is written in digits as
A
$25,!!!,!!!.
(a) 14,218
(b) The estimated U.S. population in the 2020
1: ten-thousands
column is $41 million and is written in digits as
4: thousands $41,!!!,!!!.
2: hundreds (c) The household income in 2010 was $%6,326
A
1: tens and is written in words as forty-six thousand,
8: ones three hundred twenty-six dollars.
(b) 460,329 (d) The estimated average yearly salary in 2020
PP
is $$6,169 and is written in words as thirty-six
4: hundred-thousands thousand, one hundred sixty-nine dollars.
6: ten-thousands
1.1 Section Exercises
0: thousands
1. The digit in the hundreds place in the whole
3: hundreds number $!'& is !. (c)
2: tens
2. The digit in the ten-thousands place in the whole
R
9: ones number "$%,')" is $. (b)
3. The digits in each period (group) of 3. "),!"&; ten-thousands: "; hundreds: !
$,#&",'!*,$#):
4. )',$$#; ten-thousands: ); ones: #
O
(a) $ is in the billions period.
5. (,'#),&*#,")$; millions: ); thousands: #
(b) #&" is in the millions period.
6. ",(!!,##&,!"'; billions: "; millions: !
(c) '!* is in the thousands period.
VE
7. The digits in the thousands period in the whole
(d) $#) is in the ones period. number &&#,')(,$") are ')(.
4. (a) ") is eighteen. 8. The digits in the millions period in the whole
(b) $' is thirty-six. number *(%,$#",)(',&#) are $#".
(c) %") is four hundred eighteen. 9. $,&'",%$&; millions: $; thousands: &'"; ones: %$&
(d) *!# is nine hundred two. 10. "!!,#&),"!!,!!'; billions: "!!; millions: #&);
D
thousands: "!!; ones: '
5. (a) $"!% is three thousand, one hundred four.
11. Evidence suggests that this is true. It is common
(b) *&,$(# is ninety-five thousand, three hundred to count using fingers.
seventy-two.
?
Copyright © 2018 Pearson Education, Inc.
, 2 Chapter 1 Whole Numbers
12. No doubt there is a relationship here. One 31. The least used method of transportation is public
answer might be that people could count using transportation. ',!'*,&)* in words is six million,
their fingers and toes and, therefore, thought of sixty-nine thousand, five hundred eighty-nine.
them as numbers or digits.
TU
32. From the table, "drive alone" is the method of
13. #$,""& is twenty-three thousand, one hundred transportation most used. )%,#"&,#*) written out
fifteen. The statement is false (no "and"). is eighty-four million, two hundred fifteen
thousand, two hundred ninety-eight.
14. $(,))' is thirty-seven thousand, eight hundred
eighty-six. The statement is true. 33. The number of people who walk to work or work
at home is (,)*%,*"". In words, (,)*%,*"" is
15. $%',!!* is three hundred forty-six thousand,
written as seven million, eight hundred ninety-
nine.
VI
four thousand, nine hundred eleven.
16. #"),!$$ is two hundred eighteen thousand,
34. From the table, the number of people who
thirty-three.
carpool is "&,$((,'$%. Written in words,
17. #&,(&',''& is twenty-five million, seven hundred "&,$((,'$% is fifteen million, three hundred
fifty-six thousand, six hundred sixty-five. seventy-seven thousand, six hundred thirty-four.
A
18. ***,**$,!!! is nine hundred ninety-nine million,
nine hundred ninety-three thousand. 1.2 Adding Whole Numbers
19. Sixty-three thousand, one hundred sixty-three is 1.2 Margin Exercises
'$,"'$Þ 1. (a) # ' œ ); ' # œ )
A
20. Ninety-five thousand, one hundred eleven is (b) * & œ "%; & * œ "%
*&,"""Þ
(c) % ( œ ""; ( % œ ""
21. Ten million, two hundred twenty-three is
"!,!!!,##$. 2. (a) $
PP
) $ ) œ ""
22. One hundred million, two hundred is
"!!,!!!,#!!Þ & "" & œ "'
% "' % œ #!
23. Seventy-nine million, six hundred eighty ' #! ' œ #'
thousand in digits is 79,680,000.
#'
24. Two hundred forty-three thousand in digits is
(b) &
R
#%$,!!!Þ
' & ' œ ""
25. Fifty million, fifty-one thousand, five hundred $ "" $ œ "%
seven in digits is &!,!&",&!(. # "% # œ "'
O
26. Fifty-two thousand, eight hundred in digits is % "' % œ #!
52,800. #!
27. Fifty-four million, seven hundred fifty thousand (c) *
in digits is &%,(&!,!!!Þ
VE
' * ' œ "&
28. Two hundred twenty-one thousand in digits is ) "& ) œ #$
##",!!!Þ ( #$ ( œ $!
$ $! $ œ $$
29. Eight hundred trillion, six hundred twenty-one
million, twenty thousand, two hundred fifteen in $$
digits is )!!,!!!,'#",!#!,#"&. (d) $
30. #,3&$,)*',%%) is two billion, three hundred fifty- ) $ ) œ ""
D
three million, eight hundred ninety-six thousand, ' "" ' œ "(
four hundred forty-eight. % "( % œ #"
) #" ) œ #*
?
#*
Copyright © 2018 Pearson Education, Inc.
, 1.2 Adding Whole Numbers 3
3. (a) #' (b) &$% (b) "&,)#*
($ #'& ('&
** (** ()
TU
"&
(c) %#,$!&
*
"",&'$
(
&$,)')
"$,"(*
" #*,))#
4. (a) ''
# ( ' ones and ( ones œ "$ ones 7. The shortest route from Lake Buena Vista to
*$ Conway is as follows:
VI
" % Lake Buena Vista to Resort Area
(b) &)
' Resort Area to Pine Castle
$ $ ) ones and $ ones œ "" ones
$ Pine Castle to Belle Isle
*"
' Belle Isle to Conway
"
miles
A
(c) &' "*
$ ( ' ones and ( ones œ "$ ones 8. The next shortest route from Orlando to Clear
*$ Lake is as follows:
" & Orlando to Pine Hills
(d) $%
) Pine Hills to Altamonte Springs
% * % ones and * ones œ "$ ones
A
& Altamonte Springs to Casselberry
)$
' Casselberry to Bertha
" #" ( Bertha to Winter Park
5. (a) % " '#
Winter Park to Clear Lake
PP
% #( " (
$( # $) miles
) *( ' ##
9. &#'
"$, () "
#*(
# #"
(b) ( ) #" &#'
%$ & #*(
R
(# "'%' feet
$! & The amount of fencing needed is "'%' feet,
" '* $ which is the perimeter of (distance around) the
O
"!, $# ' project.
6. (a) )"' 10. (a) '$
$'$ %
VE
"( *
# #)
& "!% correct
('&%
(b) *#(
))&( $*&
'%
#&"
D
"'$( correct
?
Copyright © 2018 Pearson Education, Inc.
