Basic Mathematics for College Students

99. CANDY The graph below shows U.S. candy sales in
    2007 during four holiday periods. Find the sum of
    these seasonal candy sales.

Source: National Confectioners Association

100. AIRLINE SAFETY The following graph shows the
     U.S. passenger airlines accident report for the years
     2000–2007. How many accidents were there in this
     8-year time span?

Source: National Transportation Safety Board

101. FLAGS To decorate a city flag, yellow fringe is to
     be sewn around its outside edges, as shown. The
     fringe is sold by the inch. How many inches of fringe
     must be purchased to complete the project?


102. DECORATING A child’s bedroom is rectangular
     in shape with dimensions 15 feet by 11 feet. How
     many feet of wallpaper border are needed to wrap
     around the entire room?

64 in.

34 in.

2000

Year

2001 2002 2003 20042005 2006 2007

56

46

40

33

26

41

54

30

60

50

40

30

20

10

Number of accidents

Valentine's Day

Easter

Halloween

Winter Holidays

$1,036,000,000

$1,987,000,000

$2,202,000,000

$1,420,000,000

103. BOXING How much padded rope is needed to make
     a square boxing ring, 24 feet on each side?


104. FENCES A square piece of land measuring 209 feet
     on all four sides is approximately one acre. How
     many feet of chain link fencing are needed to
     enclose a piece of land this size?


105. Explain why the operation of addition is
     commutative.


106. Explain why the operation of addition is associative.


107. In this section, it is said that estimation is a tradeoff.
     Give one benefit and one drawback of estimation.


108. A student added three whole numbers top to
     bottom and then bottom to top, as shown below.
     What do the results in red indicate? What should the
     student do next?


109. Write each number in expanded notation.
     a. 3,125
     b. 60,037


110. Round 6,354,784 to the nearest
     a. ten
     b. hundred
     c. ten thousand
     d. hundred thousand

p

REVIEW

1,689

496

315

 788

1,599

WRITING

28 Chapter 1 Whole Numbers