Basic Mathematics for College Students

203

CHAPTERS 1–2 CUMULATIVE REVIEW

1. Consider the number 7,326,549.[Section 1.1]
   a. What is the place value of the digit 7?
   b. Which digit is in the hundred thousands column?
   c. Round to the nearest hundred.
   d. Round to the nearest ten thousand.


2. BIDS A school district received the bids shown in
   the table for electrical work. If the lowest bidder wins,
   which company should be awarded the contract?
   [Section 1.1]

Datatel $2,189,413

Walton Electric $2,201,999

Advanced Telecorp $2,175,081

CRF Cable $2,174,999

Clark & Sons $2,175,801

Citrus Unified School District Bid 02-9899

Cabling and Conduit Installation

3. NUCLEAR POWER The table gives the number of
   nuclear power plants operating in the United States
   for selected years. Complete the bar graph using the
   given data.[Section 1.1]

Number of operable

U.S. nuclear power plants

80

70

60

50

40

30

20

10

90

1978

Source: allcountries.org and The World Almanac and Book of Facts, 2009

100

110

120

1983 1988 1993 1998 2003 2008

Bar graph

Year 1978 1983 1988 1993 1998 2003 2008

Plants 70 81 109 110 104 104 104

Vertical count

180 threads

Horizontal count

180 threads

Add.[Section 1.2]

Subtract.[Section 1.3]

9.

10. Subtract 304 from 1,736.[Section 1.3]


11. Check the subtraction below using addition. Is it
    correct?[Section 1.3]


12. SHIPPING FURNITURE In a shipment of
    147 pieces of furniture, 27 pieces were sofas,
    55 were leather chairs, and the rest were wooden
    chairs. Find the number of wooden chairs.[Section 1.3]

469

 237

132

39,506

 1,729

5,369

 685

6,3752,569

8,907

2,345

7,899

 5,237

1,237 68  549

4. THREAD COUNT The thread count of a fabric is
   the sum of the number of horizontal and vertical
   threads woven in one square inch of fabric. One
   square inch of a bed sheet is shown below. Find the
   thread count.[Section 1.2]